Home / 28,031.68-41,993.76-15,728.32

Finding the Fourth Proportional to 28,031.68, 41,993.76 and 15,728.32

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Solution

The fourth proportional to 28,031.68, 41,993.76 and 15,728.32 is: 23,562.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,031.68 : 41,993.76 = 15,728.32 : x
  2. Step 2: Convert to fraction form
    28,031.68/41,993.76 = 15,728.32/x
  3. Step 3: Cross multiply
    28,031.68x = 41,993.76 × 15,728.32
  4. Step 4: Simplify right side
    28,031.68x = 660,491,295.28
  5. Step 5: Solve for x
    x = 660,491,295.28/28,031.68
  6. Step 6: Final answer
    x = 23,562.32

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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.