Home / 39,034.32-53,867.24-21,129.32

Finding the Fourth Proportional to 39,034.32, 53,867.24 and 21,129.32

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Solution

The fourth proportional to 39,034.32, 53,867.24 and 21,129.32 is: 29,158.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,034.32 : 53,867.24 = 21,129.32 : x
  2. Step 2: Convert to fraction form
    39,034.32/53,867.24 = 21,129.32/x
  3. Step 3: Cross multiply
    39,034.32x = 53,867.24 × 21,129.32
  4. Step 4: Simplify right side
    39,034.32x = 1,138,178,151.48
  5. Step 5: Solve for x
    x = 1,138,178,151.48/39,034.32
  6. Step 6: Final answer
    x = 29,158.40

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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.