Home / 28,631.20-42,959.56-11,102.38

Finding the Fourth Proportional to 28,631.20, 42,959.56 and 11,102.38

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Solution

The fourth proportional to 28,631.20, 42,959.56 and 11,102.38 is: 16,658.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,631.20 : 42,959.56 = 11,102.38 : x
  2. Step 2: Convert to fraction form
    28,631.20/42,959.56 = 11,102.38/x
  3. Step 3: Cross multiply
    28,631.20x = 42,959.56 × 11,102.38
  4. Step 4: Simplify right side
    28,631.20x = 476,953,359.75
  5. Step 5: Solve for x
    x = 476,953,359.75/28,631.20
  6. Step 6: Final answer
    x = 16,658.52

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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.