Home / 20,861.52-28,766.68-17,056.24

Finding the Fourth Proportional to 20,861.52, 28,766.68 and 17,056.24

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Solution

The fourth proportional to 20,861.52, 28,766.68 and 17,056.24 is: 23,519.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,861.52 : 28,766.68 = 17,056.24 : x
  2. Step 2: Convert to fraction form
    20,861.52/28,766.68 = 17,056.24/x
  3. Step 3: Cross multiply
    20,861.52x = 28,766.68 × 17,056.24
  4. Step 4: Simplify right side
    20,861.52x = 490,651,398.08
  5. Step 5: Solve for x
    x = 490,651,398.08/20,861.52
  6. Step 6: Final answer
    x = 23,519.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.