Home / 38,495.79-53,120.39-21,498.66

Finding the Fourth Proportional to 38,495.79, 53,120.39 and 21,498.66

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Solution

The fourth proportional to 38,495.79, 53,120.39 and 21,498.66 is: 29,666.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,495.79 : 53,120.39 = 21,498.66 : x
  2. Step 2: Convert to fraction form
    38,495.79/53,120.39 = 21,498.66/x
  3. Step 3: Cross multiply
    38,495.79x = 53,120.39 × 21,498.66
  4. Step 4: Simplify right side
    38,495.79x = 1,142,017,096.18
  5. Step 5: Solve for x
    x = 1,142,017,096.18/38,495.79
  6. Step 6: Final answer
    x = 29,666.03

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Half scale
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Double scale
Find fourth proportional to 38,496.79, 53,121.76 and 21,499.66
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.