Home / 28,665.23-39,559.15-16,565.31

Finding the Fourth Proportional to 28,665.23, 39,559.15 and 16,565.31

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Solution

The fourth proportional to 28,665.23, 39,559.15 and 16,565.31 is: 22,860.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,665.23 : 39,559.15 = 16,565.31 : x
  2. Step 2: Convert to fraction form
    28,665.23/39,559.15 = 16,565.31/x
  3. Step 3: Cross multiply
    28,665.23x = 39,559.15 × 16,565.31
  4. Step 4: Simplify right side
    28,665.23x = 655,309,583.09
  5. Step 5: Solve for x
    x = 655,309,583.09/28,665.23
  6. Step 6: Final answer
    x = 22,860.78

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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.