Home / 39,034.53-53,867.75-21,129.71

Finding the Fourth Proportional to 39,034.53, 53,867.75 and 21,129.71

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Solution

The fourth proportional to 39,034.53, 53,867.75 and 21,129.71 is: 29,159.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,034.53 : 53,867.75 = 21,129.71 : x
  2. Step 2: Convert to fraction form
    39,034.53/53,867.75 = 21,129.71/x
  3. Step 3: Cross multiply
    39,034.53x = 53,867.75 × 21,129.71
  4. Step 4: Simplify right side
    39,034.53x = 1,138,209,560.87
  5. Step 5: Solve for x
    x = 1,138,209,560.87/39,034.53
  6. Step 6: Final answer
    x = 29,159.04

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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.