Home / 20,657.90-31,007.19-14,741.30

Finding the Fourth Proportional to 20,657.90, 31,007.19 and 14,741.30

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Solution

The fourth proportional to 20,657.90, 31,007.19 and 14,741.30 is: 22,126.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,657.90 : 31,007.19 = 14,741.30 : x
  2. Step 2: Convert to fraction form
    20,657.90/31,007.19 = 14,741.30/x
  3. Step 3: Cross multiply
    20,657.90x = 31,007.19 × 14,741.30
  4. Step 4: Simplify right side
    20,657.90x = 457,086,289.95
  5. Step 5: Solve for x
    x = 457,086,289.95/20,657.90
  6. Step 6: Final answer
    x = 22,126.46

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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.