Home / 20,654.12-30,955.80-9,545.78

Finding the Fourth Proportional to 20,654.12, 30,955.80 and 9,545.78

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Solution

The fourth proportional to 20,654.12, 30,955.80 and 9,545.78 is: 14,306.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,654.12 : 30,955.80 = 9,545.78 : x
  2. Step 2: Convert to fraction form
    20,654.12/30,955.80 = 9,545.78/x
  3. Step 3: Cross multiply
    20,654.12x = 30,955.80 × 9,545.78
  4. Step 4: Simplify right side
    20,654.12x = 295,497,256.52
  5. Step 5: Solve for x
    x = 295,497,256.52/20,654.12
  6. Step 6: Final answer
    x = 14,306.94

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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.