Home / 28,119.92-42,178.76-15,632.04

Finding the Fourth Proportional to 28,119.92, 42,178.76 and 15,632.04

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Solution

The fourth proportional to 28,119.92, 42,178.76 and 15,632.04 is: 23,447.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,119.92 : 42,178.76 = 15,632.04 : x
  2. Step 2: Convert to fraction form
    28,119.92/42,178.76 = 15,632.04/x
  3. Step 3: Cross multiply
    28,119.92x = 42,178.76 × 15,632.04
  4. Step 4: Simplify right side
    28,119.92x = 659,340,202.10
  5. Step 5: Solve for x
    x = 659,340,202.10/28,119.92
  6. Step 6: Final answer
    x = 23,447.45

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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.