Home / 20,171.61-30,260.67-8,488.17

Finding the Fourth Proportional to 20,171.61, 30,260.67 and 8,488.17

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Solution

The fourth proportional to 20,171.61, 30,260.67 and 8,488.17 is: 12,733.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,171.61 : 30,260.67 = 8,488.17 : x
  2. Step 2: Convert to fraction form
    20,171.61/30,260.67 = 8,488.17/x
  3. Step 3: Cross multiply
    20,171.61x = 30,260.67 × 8,488.17
  4. Step 4: Simplify right side
    20,171.61x = 256,857,711.27
  5. Step 5: Solve for x
    x = 256,857,711.27/20,171.61
  6. Step 6: Final answer
    x = 12,733.62

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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.