Home / 38,120.59-52,605.62-21,124.68

Finding the Fourth Proportional to 38,120.59, 52,605.62 and 21,124.68

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Solution

The fourth proportional to 38,120.59, 52,605.62 and 21,124.68 is: 29,151.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,120.59 : 52,605.62 = 21,124.68 : x
  2. Step 2: Convert to fraction form
    38,120.59/52,605.62 = 21,124.68/x
  3. Step 3: Cross multiply
    38,120.59x = 52,605.62 × 21,124.68
  4. Step 4: Simplify right side
    38,120.59x = 1,111,276,520.05
  5. Step 5: Solve for x
    x = 1,111,276,520.05/38,120.59
  6. Step 6: Final answer
    x = 29,151.61

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Half scale
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Double scale
Find fourth proportional to 38,121.59, 52,606.99 and 21,125.68
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.