Home / 42,339.47-63,512.31-14,259.38

Finding the Fourth Proportional to 42,339.47, 63,512.31 and 14,259.38

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Solution

The fourth proportional to 42,339.47, 63,512.31 and 14,259.38 is: 21,390.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,339.47 : 63,512.31 = 14,259.38 : x
  2. Step 2: Convert to fraction form
    42,339.47/63,512.31 = 14,259.38/x
  3. Step 3: Cross multiply
    42,339.47x = 63,512.31 × 14,259.38
  4. Step 4: Simplify right side
    42,339.47x = 905,646,162.97
  5. Step 5: Solve for x
    x = 905,646,162.97/42,339.47
  6. Step 6: Final answer
    x = 21,390.12

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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.