Home / 42,600.16-63,891.44-11,428

Finding the Fourth Proportional to 42,600.16, 63,891.44 and 11,428

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Solution

The fourth proportional to 42,600.16, 63,891.44 and 11,428 is: 17,139.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,600.16 : 63,891.44 = 11,428 : x
  2. Step 2: Convert to fraction form
    42,600.16/63,891.44 = 11,428/x
  3. Step 3: Cross multiply
    42,600.16x = 63,891.44 × 11,428
  4. Step 4: Simplify right side
    42,600.16x = 730,151,376.32
  5. Step 5: Solve for x
    x = 730,151,376.32/42,600.16
  6. Step 6: Final answer
    x = 17,139.64

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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.