Home / 38,498.04-53,130.06-21,505.68

Finding the Fourth Proportional to 38,498.04, 53,130.06 and 21,505.68

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Solution

The fourth proportional to 38,498.04, 53,130.06 and 21,505.68 is: 29,679.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,498.04 : 53,130.06 = 21,505.68 : x
  2. Step 2: Convert to fraction form
    38,498.04/53,130.06 = 21,505.68/x
  3. Step 3: Cross multiply
    38,498.04x = 53,130.06 × 21,505.68
  4. Step 4: Simplify right side
    38,498.04x = 1,142,598,068.74
  5. Step 5: Solve for x
    x = 1,142,598,068.74/38,498.04
  6. Step 6: Final answer
    x = 29,679.38

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Double scale
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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.