Home / 31,418.08-47,114.32-15,617.44

Finding the Fourth Proportional to 31,418.08, 47,114.32 and 15,617.44

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Solution

The fourth proportional to 31,418.08, 47,114.32 and 15,617.44 is: 23,419.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,418.08 : 47,114.32 = 15,617.44 : x
  2. Step 2: Convert to fraction form
    31,418.08/47,114.32 = 15,617.44/x
  3. Step 3: Cross multiply
    31,418.08x = 47,114.32 × 15,617.44
  4. Step 4: Simplify right side
    31,418.08x = 735,805,065.74
  5. Step 5: Solve for x
    x = 735,805,065.74/31,418.08
  6. Step 6: Final answer
    x = 23,419.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.