Home / 20,746.18-31,111.17-9,650.80

Finding the Fourth Proportional to 20,746.18, 31,111.17 and 9,650.80

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Solution

The fourth proportional to 20,746.18, 31,111.17 and 9,650.80 is: 14,472.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,746.18 : 31,111.17 = 9,650.80 : x
  2. Step 2: Convert to fraction form
    20,746.18/31,111.17 = 9,650.80/x
  3. Step 3: Cross multiply
    20,746.18x = 31,111.17 × 9,650.80
  4. Step 4: Simplify right side
    20,746.18x = 300,247,679.44
  5. Step 5: Solve for x
    x = 300,247,679.44/20,746.18
  6. Step 6: Final answer
    x = 14,472.43

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1.5x scale

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.