Home / 20,549.60-28,332.74-17,151.50

Finding the Fourth Proportional to 20,549.60, 28,332.74 and 17,151.50

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Solution

The fourth proportional to 20,549.60, 28,332.74 and 17,151.50 is: 23,647.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,549.60 : 28,332.74 = 17,151.50 : x
  2. Step 2: Convert to fraction form
    20,549.60/28,332.74 = 17,151.50/x
  3. Step 3: Cross multiply
    20,549.60x = 28,332.74 × 17,151.50
  4. Step 4: Simplify right side
    20,549.60x = 485,948,990.11
  5. Step 5: Solve for x
    x = 485,948,990.11/20,549.60
  6. Step 6: Final answer
    x = 23,647.61

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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.