Home / 28,642.28-42,976.31-15,479.24

Finding the Fourth Proportional to 28,642.28, 42,976.31 and 15,479.24

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Solution

The fourth proportional to 28,642.28, 42,976.31 and 15,479.24 is: 23,225.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,642.28 : 42,976.31 = 15,479.24 : x
  2. Step 2: Convert to fraction form
    28,642.28/42,976.31 = 15,479.24/x
  3. Step 3: Cross multiply
    28,642.28x = 42,976.31 × 15,479.24
  4. Step 4: Simplify right side
    28,642.28x = 665,240,324.53
  5. Step 5: Solve for x
    x = 665,240,324.53/28,642.28
  6. Step 6: Final answer
    x = 23,225.82

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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.