Home / 15,958.20-23,966.10-15,439.80

Finding the Fourth Proportional to 15,958.20, 23,966.10 and 15,439.80

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Solution

The fourth proportional to 15,958.20, 23,966.10 and 15,439.80 is: 23,187.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,958.20 : 23,966.10 = 15,439.80 : x
  2. Step 2: Convert to fraction form
    15,958.20/23,966.10 = 15,439.80/x
  3. Step 3: Cross multiply
    15,958.20x = 23,966.10 × 15,439.80
  4. Step 4: Simplify right side
    15,958.20x = 370,031,790.78
  5. Step 5: Solve for x
    x = 370,031,790.78/15,958.20
  6. Step 6: Final answer
    x = 23,187.56

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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.