Home / 28,672.16-39,565.66-15,924.30

Finding the Fourth Proportional to 28,672.16, 39,565.66 and 15,924.30

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Solution

The fourth proportional to 28,672.16, 39,565.66 and 15,924.30 is: 21,974.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,672.16 : 39,565.66 = 15,924.30 : x
  2. Step 2: Convert to fraction form
    28,672.16/39,565.66 = 15,924.30/x
  3. Step 3: Cross multiply
    28,672.16x = 39,565.66 × 15,924.30
  4. Step 4: Simplify right side
    28,672.16x = 630,055,439.54
  5. Step 5: Solve for x
    x = 630,055,439.54/28,672.16
  6. Step 6: Final answer
    x = 21,974.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.