Home / 42,009.31-63,006.63-15,708.61

Finding the Fourth Proportional to 42,009.31, 63,006.63 and 15,708.61

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Solution

The fourth proportional to 42,009.31, 63,006.63 and 15,708.61 is: 23,560.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,009.31 : 63,006.63 = 15,708.61 : x
  2. Step 2: Convert to fraction form
    42,009.31/63,006.63 = 15,708.61/x
  3. Step 3: Cross multiply
    42,009.31x = 63,006.63 × 15,708.61
  4. Step 4: Simplify right side
    42,009.31x = 989,746,578.08
  5. Step 5: Solve for x
    x = 989,746,578.08/42,009.31
  6. Step 6: Final answer
    x = 23,560.17

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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.