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Finding the Fourth Proportional to 28,227.61, 42,347.90 and 9,507.16

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Solution

The fourth proportional to 28,227.61, 42,347.90 and 9,507.16 is: 14,262.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,227.61 : 42,347.90 = 9,507.16 : x
  2. Step 2: Convert to fraction form
    28,227.61/42,347.90 = 9,507.16/x
  3. Step 3: Cross multiply
    28,227.61x = 42,347.90 × 9,507.16
  4. Step 4: Simplify right side
    28,227.61x = 402,608,260.96
  5. Step 5: Solve for x
    x = 402,608,260.96/28,227.61
  6. Step 6: Final answer
    x = 14,262.92

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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.