Home / 31,734.90-47,618.64-13,977.99

Finding the Fourth Proportional to 31,734.90, 47,618.64 and 13,977.99

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Solution

The fourth proportional to 31,734.90, 47,618.64 and 13,977.99 is: 20,974.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,734.90 : 47,618.64 = 13,977.99 : x
  2. Step 2: Convert to fraction form
    31,734.90/47,618.64 = 13,977.99/x
  3. Step 3: Cross multiply
    31,734.90x = 47,618.64 × 13,977.99
  4. Step 4: Simplify right side
    31,734.90x = 665,612,873.73
  5. Step 5: Solve for x
    x = 665,612,873.73/31,734.90
  6. Step 6: Final answer
    x = 20,974.16

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Why These Related Problems?

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