Home / 20,250.91-27,973.50-18,364.62

Finding the Fourth Proportional to 20,250.91, 27,973.50 and 18,364.62

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Solution

The fourth proportional to 20,250.91, 27,973.50 and 18,364.62 is: 25,367.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,250.91 : 27,973.50 = 18,364.62 : x
  2. Step 2: Convert to fraction form
    20,250.91/27,973.50 = 18,364.62/x
  3. Step 3: Cross multiply
    20,250.91x = 27,973.50 × 18,364.62
  4. Step 4: Simplify right side
    20,250.91x = 513,722,697.57
  5. Step 5: Solve for x
    x = 513,722,697.57/20,250.91
  6. Step 6: Final answer
    x = 25,367.88

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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.