Home / 20,864.42-28,793.27-11,432.42

Finding the Fourth Proportional to 20,864.42, 28,793.27 and 11,432.42

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Solution

The fourth proportional to 20,864.42, 28,793.27 and 11,432.42 is: 15,776.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,864.42 : 28,793.27 = 11,432.42 : x
  2. Step 2: Convert to fraction form
    20,864.42/28,793.27 = 11,432.42/x
  3. Step 3: Cross multiply
    20,864.42x = 28,793.27 × 11,432.42
  4. Step 4: Simplify right side
    20,864.42x = 329,176,755.81
  5. Step 5: Solve for x
    x = 329,176,755.81/20,864.42
  6. Step 6: Final answer
    x = 15,776.94

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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.