Home / 18,331.20-27,482.40-10,123.20

Finding the Fourth Proportional to 18,331.20, 27,482.40 and 10,123.20

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Solution

The fourth proportional to 18,331.20, 27,482.40 and 10,123.20 is: 15,176.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,331.20 : 27,482.40 = 10,123.20 : x
  2. Step 2: Convert to fraction form
    18,331.20/27,482.40 = 10,123.20/x
  3. Step 3: Cross multiply
    18,331.20x = 27,482.40 × 10,123.20
  4. Step 4: Simplify right side
    18,331.20x = 278,209,831.68
  5. Step 5: Solve for x
    x = 278,209,831.68/18,331.20
  6. Step 6: Final answer
    x = 15,176.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.