Home / 18,200.27-25,053.22-15,690.69

Finding the Fourth Proportional to 18,200.27, 25,053.22 and 15,690.69

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Solution

The fourth proportional to 18,200.27, 25,053.22 and 15,690.69 is: 21,598.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,200.27 : 25,053.22 = 15,690.69 : x
  2. Step 2: Convert to fraction form
    18,200.27/25,053.22 = 15,690.69/x
  3. Step 3: Cross multiply
    18,200.27x = 25,053.22 × 15,690.69
  4. Step 4: Simplify right side
    18,200.27x = 393,102,269.30
  5. Step 5: Solve for x
    x = 393,102,269.30/18,200.27
  6. Step 6: Final answer
    x = 21,598.70

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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.