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Finding the Fourth Proportional to 22,667.80, 34,002.10 and 7,877.20

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Solution

The fourth proportional to 22,667.80, 34,002.10 and 7,877.20 is: 11,815.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,667.80 : 34,002.10 = 7,877.20 : x
  2. Step 2: Convert to fraction form
    22,667.80/34,002.10 = 7,877.20/x
  3. Step 3: Cross multiply
    22,667.80x = 34,002.10 × 7,877.20
  4. Step 4: Simplify right side
    22,667.80x = 267,841,342.12
  5. Step 5: Solve for x
    x = 267,841,342.12/22,667.80
  6. Step 6: Final answer
    x = 11,815.94

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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.