Home / 20,539.45-28,349.17-12,044.31

Finding the Fourth Proportional to 20,539.45, 28,349.17 and 12,044.31

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Solution

The fourth proportional to 20,539.45, 28,349.17 and 12,044.31 is: 16,623.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,539.45 : 28,349.17 = 12,044.31 : x
  2. Step 2: Convert to fraction form
    20,539.45/28,349.17 = 12,044.31/x
  3. Step 3: Cross multiply
    20,539.45x = 28,349.17 × 12,044.31
  4. Step 4: Simplify right side
    20,539.45x = 341,446,120.57
  5. Step 5: Solve for x
    x = 341,446,120.57/20,539.45
  6. Step 6: Final answer
    x = 16,623.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.