Home / 28,565.22-39,416.31-15,989.97

Finding the Fourth Proportional to 28,565.22, 39,416.31 and 15,989.97

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Solution

The fourth proportional to 28,565.22, 39,416.31 and 15,989.97 is: 22,064.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,565.22 : 39,416.31 = 15,989.97 : x
  2. Step 2: Convert to fraction form
    28,565.22/39,416.31 = 15,989.97/x
  3. Step 3: Cross multiply
    28,565.22x = 39,416.31 × 15,989.97
  4. Step 4: Simplify right side
    28,565.22x = 630,265,614.41
  5. Step 5: Solve for x
    x = 630,265,614.41/28,565.22
  6. Step 6: Final answer
    x = 22,064.09

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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.