Home / 20,923.38-28,869.30-11,848.86

Finding the Fourth Proportional to 20,923.38, 28,869.30 and 11,848.86

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Solution

The fourth proportional to 20,923.38, 28,869.30 and 11,848.86 is: 16,348.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,923.38 : 28,869.30 = 11,848.86 : x
  2. Step 2: Convert to fraction form
    20,923.38/28,869.30 = 11,848.86/x
  3. Step 3: Cross multiply
    20,923.38x = 28,869.30 × 11,848.86
  4. Step 4: Simplify right side
    20,923.38x = 342,068,294.00
  5. Step 5: Solve for x
    x = 342,068,294.00/20,923.38
  6. Step 6: Final answer
    x = 16,348.62

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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.