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Finding the Fourth Proportional to 28,498.83, 42,754.92 and 8,776.95

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Solution

The fourth proportional to 28,498.83, 42,754.92 and 8,776.95 is: 13,167.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,498.83 : 42,754.92 = 8,776.95 : x
  2. Step 2: Convert to fraction form
    28,498.83/42,754.92 = 8,776.95/x
  3. Step 3: Cross multiply
    28,498.83x = 42,754.92 × 8,776.95
  4. Step 4: Simplify right side
    28,498.83x = 375,257,795.09
  5. Step 5: Solve for x
    x = 375,257,795.09/28,498.83
  6. Step 6: Final answer
    x = 13,167.48

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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.