Home / 20,217.65-30,348.05-17,892.45

Finding the Fourth Proportional to 20,217.65, 30,348.05 and 17,892.45

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Solution

The fourth proportional to 20,217.65, 30,348.05 and 17,892.45 is: 26,857.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,217.65 : 30,348.05 = 17,892.45 : x
  2. Step 2: Convert to fraction form
    20,217.65/30,348.05 = 17,892.45/x
  3. Step 3: Cross multiply
    20,217.65x = 30,348.05 × 17,892.45
  4. Step 4: Simplify right side
    20,217.65x = 543,000,877.76
  5. Step 5: Solve for x
    x = 543,000,877.76/20,217.65
  6. Step 6: Final answer
    x = 26,857.76

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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.