Home / 28,214.12-42,321.49-11,562.55

Finding the Fourth Proportional to 28,214.12, 42,321.49 and 11,562.55

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Solution

The fourth proportional to 28,214.12, 42,321.49 and 11,562.55 is: 17,343.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,214.12 : 42,321.49 = 11,562.55 : x
  2. Step 2: Convert to fraction form
    28,214.12/42,321.49 = 11,562.55/x
  3. Step 3: Cross multiply
    28,214.12x = 42,321.49 × 11,562.55
  4. Step 4: Simplify right side
    28,214.12x = 489,344,209.49
  5. Step 5: Solve for x
    x = 489,344,209.49/28,214.12
  6. Step 6: Final answer
    x = 17,343.95

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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.