Home / 28,561.16-39,414.10-15,986

Finding the Fourth Proportional to 28,561.16, 39,414.10 and 15,986

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Solution

The fourth proportional to 28,561.16, 39,414.10 and 15,986 is: 22,060.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,561.16 : 39,414.10 = 15,986 : x
  2. Step 2: Convert to fraction form
    28,561.16/39,414.10 = 15,986/x
  3. Step 3: Cross multiply
    28,561.16x = 39,414.10 × 15,986
  4. Step 4: Simplify right side
    28,561.16x = 630,073,802.60
  5. Step 5: Solve for x
    x = 630,073,802.60/28,561.16
  6. Step 6: Final answer
    x = 22,060.51

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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.