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Finding the Fourth Proportional to 28,369.59, 42,542.07 and 9,644.59

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Solution

The fourth proportional to 28,369.59, 42,542.07 and 9,644.59 is: 14,462.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,369.59 : 42,542.07 = 9,644.59 : x
  2. Step 2: Convert to fraction form
    28,369.59/42,542.07 = 9,644.59/x
  3. Step 3: Cross multiply
    28,369.59x = 42,542.07 × 9,644.59
  4. Step 4: Simplify right side
    28,369.59x = 410,300,822.90
  5. Step 5: Solve for x
    x = 410,300,822.90/28,369.59
  6. Step 6: Final answer
    x = 14,462.70

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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.