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Finding the Fourth Proportional to 28,549.31, 42,823.95 and 8,827.43

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Solution

The fourth proportional to 28,549.31, 42,823.95 and 8,827.43 is: 13,241.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,549.31 : 42,823.95 = 8,827.43 : x
  2. Step 2: Convert to fraction form
    28,549.31/42,823.95 = 8,827.43/x
  3. Step 3: Cross multiply
    28,549.31x = 42,823.95 × 8,827.43
  4. Step 4: Simplify right side
    28,549.31x = 378,025,206.83
  5. Step 5: Solve for x
    x = 378,025,206.83/28,549.31
  6. Step 6: Final answer
    x = 13,241.14

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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.