Home / 38,666.43-57,983.22-13,712.76

Finding the Fourth Proportional to 38,666.43, 57,983.22 and 13,712.76

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Solution

The fourth proportional to 38,666.43, 57,983.22 and 13,712.76 is: 20,563.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,666.43 : 57,983.22 = 13,712.76 : x
  2. Step 2: Convert to fraction form
    38,666.43/57,983.22 = 13,712.76/x
  3. Step 3: Cross multiply
    38,666.43x = 57,983.22 × 13,712.76
  4. Step 4: Simplify right side
    38,666.43x = 795,109,979.89
  5. Step 5: Solve for x
    x = 795,109,979.89/38,666.43
  6. Step 6: Final answer
    x = 20,563.31

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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.