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Finding the Fourth Proportional to 28,006.52, 42,016.50 and 8,016.30

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Solution

The fourth proportional to 28,006.52, 42,016.50 and 8,016.30 is: 12,026.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,006.52 : 42,016.50 = 8,016.30 : x
  2. Step 2: Convert to fraction form
    28,006.52/42,016.50 = 8,016.30/x
  3. Step 3: Cross multiply
    28,006.52x = 42,016.50 × 8,016.30
  4. Step 4: Simplify right side
    28,006.52x = 336,816,868.95
  5. Step 5: Solve for x
    x = 336,816,868.95/28,006.52
  6. Step 6: Final answer
    x = 12,026.38

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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.