Home / 20,337.86-28,062.54-11,722.70

Finding the Fourth Proportional to 20,337.86, 28,062.54 and 11,722.70

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Solution

The fourth proportional to 20,337.86, 28,062.54 and 11,722.70 is: 16,175.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,337.86 : 28,062.54 = 11,722.70 : x
  2. Step 2: Convert to fraction form
    20,337.86/28,062.54 = 11,722.70/x
  3. Step 3: Cross multiply
    20,337.86x = 28,062.54 × 11,722.70
  4. Step 4: Simplify right side
    20,337.86x = 328,968,737.66
  5. Step 5: Solve for x
    x = 328,968,737.66/20,337.86
  6. Step 6: Final answer
    x = 16,175.19

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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.