Home / 28,262.31-42,390.20-14,929.97

Finding the Fourth Proportional to 28,262.31, 42,390.20 and 14,929.97

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Solution

The fourth proportional to 28,262.31, 42,390.20 and 14,929.97 is: 22,393.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,262.31 : 42,390.20 = 14,929.97 : x
  2. Step 2: Convert to fraction form
    28,262.31/42,390.20 = 14,929.97/x
  3. Step 3: Cross multiply
    28,262.31x = 42,390.20 × 14,929.97
  4. Step 4: Simplify right side
    28,262.31x = 632,884,127.69
  5. Step 5: Solve for x
    x = 632,884,127.69/28,262.31
  6. Step 6: Final answer
    x = 22,393.22

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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.