Home / 15,647.76-23,350.32-13,986

Finding the Fourth Proportional to 15,647.76, 23,350.32 and 13,986

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Solution

The fourth proportional to 15,647.76, 23,350.32 and 13,986 is: 20,870.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,647.76 : 23,350.32 = 13,986 : x
  2. Step 2: Convert to fraction form
    15,647.76/23,350.32 = 13,986/x
  3. Step 3: Cross multiply
    15,647.76x = 23,350.32 × 13,986
  4. Step 4: Simplify right side
    15,647.76x = 326,577,575.52
  5. Step 5: Solve for x
    x = 326,577,575.52/15,647.76
  6. Step 6: Final answer
    x = 20,870.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.