Home / 20,495.80-28,274.19-17,658.25

Finding the Fourth Proportional to 20,495.80, 28,274.19 and 17,658.25

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Solution

The fourth proportional to 20,495.80, 28,274.19 and 17,658.25 is: 24,359.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,495.80 : 28,274.19 = 17,658.25 : x
  2. Step 2: Convert to fraction form
    20,495.80/28,274.19 = 17,658.25/x
  3. Step 3: Cross multiply
    20,495.80x = 28,274.19 × 17,658.25
  4. Step 4: Simplify right side
    20,495.80x = 499,272,715.57
  5. Step 5: Solve for x
    x = 499,272,715.57/20,495.80
  6. Step 6: Final answer
    x = 24,359.76

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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.