Home / 20,265.27-30,397.87-11,265.11

Finding the Fourth Proportional to 20,265.27, 30,397.87 and 11,265.11

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Solution

The fourth proportional to 20,265.27, 30,397.87 and 11,265.11 is: 16,897.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,265.27 : 30,397.87 = 11,265.11 : x
  2. Step 2: Convert to fraction form
    20,265.27/30,397.87 = 11,265.11/x
  3. Step 3: Cross multiply
    20,265.27x = 30,397.87 × 11,265.11
  4. Step 4: Simplify right side
    20,265.27x = 342,435,349.32
  5. Step 5: Solve for x
    x = 342,435,349.32/20,265.27
  6. Step 6: Final answer
    x = 16,897.65

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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.