Home / 28,165.52-42,241.10-11,522.45

Finding the Fourth Proportional to 28,165.52, 42,241.10 and 11,522.45

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Solution

The fourth proportional to 28,165.52, 42,241.10 and 11,522.45 is: 17,280.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,165.52 : 42,241.10 = 11,522.45 : x
  2. Step 2: Convert to fraction form
    28,165.52/42,241.10 = 11,522.45/x
  3. Step 3: Cross multiply
    28,165.52x = 42,241.10 × 11,522.45
  4. Step 4: Simplify right side
    28,165.52x = 486,721,010.69
  5. Step 5: Solve for x
    x = 486,721,010.69/28,165.52
  6. Step 6: Final answer
    x = 17,280.74

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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.