Home / 38,899.28-53,681.16-22,131.92

Finding the Fourth Proportional to 38,899.28, 53,681.16 and 22,131.92

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Solution

The fourth proportional to 38,899.28, 53,681.16 and 22,131.92 is: 30,542.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,899.28 : 53,681.16 = 22,131.92 : x
  2. Step 2: Convert to fraction form
    38,899.28/53,681.16 = 22,131.92/x
  3. Step 3: Cross multiply
    38,899.28x = 53,681.16 × 22,131.92
  4. Step 4: Simplify right side
    38,899.28x = 1,188,067,138.63
  5. Step 5: Solve for x
    x = 1,188,067,138.63/38,899.28
  6. Step 6: Final answer
    x = 30,542.14

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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.