Home / 38,666.22-57,985.10-13,359.29

Finding the Fourth Proportional to 38,666.22, 57,985.10 and 13,359.29

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Solution

The fourth proportional to 38,666.22, 57,985.10 and 13,359.29 is: 20,034.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,666.22 : 57,985.10 = 13,359.29 : x
  2. Step 2: Convert to fraction form
    38,666.22/57,985.10 = 13,359.29/x
  3. Step 3: Cross multiply
    38,666.22x = 57,985.10 × 13,359.29
  4. Step 4: Simplify right side
    38,666.22x = 774,639,409.86
  5. Step 5: Solve for x
    x = 774,639,409.86/38,666.22
  6. Step 6: Final answer
    x = 20,034.01

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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.