Home / 28,245.17-42,374.61-8,522.55

Finding the Fourth Proportional to 28,245.17, 42,374.61 and 8,522.55

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Solution

The fourth proportional to 28,245.17, 42,374.61 and 8,522.55 is: 12,785.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,245.17 : 42,374.61 = 8,522.55 : x
  2. Step 2: Convert to fraction form
    28,245.17/42,374.61 = 8,522.55/x
  3. Step 3: Cross multiply
    28,245.17x = 42,374.61 × 8,522.55
  4. Step 4: Simplify right side
    28,245.17x = 361,139,732.46
  5. Step 5: Solve for x
    x = 361,139,732.46/28,245.17
  6. Step 6: Final answer
    x = 12,785.89

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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.