Home / 20,353.14-30,545.28-9,111.96

Finding the Fourth Proportional to 20,353.14, 30,545.28 and 9,111.96

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Solution

The fourth proportional to 20,353.14, 30,545.28 and 9,111.96 is: 13,674.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,353.14 : 30,545.28 = 9,111.96 : x
  2. Step 2: Convert to fraction form
    20,353.14/30,545.28 = 9,111.96/x
  3. Step 3: Cross multiply
    20,353.14x = 30,545.28 × 9,111.96
  4. Step 4: Simplify right side
    20,353.14x = 278,327,369.55
  5. Step 5: Solve for x
    x = 278,327,369.55/20,353.14
  6. Step 6: Final answer
    x = 13,674.91

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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.