Home / 28,760.52-43,123.76-11,209.86

Finding the Fourth Proportional to 28,760.52, 43,123.76 and 11,209.86

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Solution

The fourth proportional to 28,760.52, 43,123.76 and 11,209.86 is: 16,808.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,760.52 : 43,123.76 = 11,209.86 : x
  2. Step 2: Convert to fraction form
    28,760.52/43,123.76 = 11,209.86/x
  3. Step 3: Cross multiply
    28,760.52x = 43,123.76 × 11,209.86
  4. Step 4: Simplify right side
    28,760.52x = 483,411,312.27
  5. Step 5: Solve for x
    x = 483,411,312.27/28,760.52
  6. Step 6: Final answer
    x = 16,808.16

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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.