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Finding the Fourth Proportional to 28,532.77, 42,801.21 and 8,808.77

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Solution

The fourth proportional to 28,532.77, 42,801.21 and 8,808.77 is: 13,213.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,532.77 : 42,801.21 = 8,808.77 : x
  2. Step 2: Convert to fraction form
    28,532.77/42,801.21 = 8,808.77/x
  3. Step 3: Cross multiply
    28,532.77x = 42,801.21 × 8,808.77
  4. Step 4: Simplify right side
    28,532.77x = 377,026,121.61
  5. Step 5: Solve for x
    x = 377,026,121.61/28,532.77
  6. Step 6: Final answer
    x = 13,213.79

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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.