Home / 42,320.56-63,429.88-15,645.28

Finding the Fourth Proportional to 42,320.56, 63,429.88 and 15,645.28

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Solution

The fourth proportional to 42,320.56, 63,429.88 and 15,645.28 is: 23,449.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,320.56 : 63,429.88 = 15,645.28 : x
  2. Step 2: Convert to fraction form
    42,320.56/63,429.88 = 15,645.28/x
  3. Step 3: Cross multiply
    42,320.56x = 63,429.88 × 15,645.28
  4. Step 4: Simplify right side
    42,320.56x = 992,378,232.97
  5. Step 5: Solve for x
    x = 992,378,232.97/42,320.56
  6. Step 6: Final answer
    x = 23,449.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.