Home / 31,181.18-46,766.13-8,989.10

Finding the Fourth Proportional to 31,181.18, 46,766.13 and 8,989.10

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Solution

The fourth proportional to 31,181.18, 46,766.13 and 8,989.10 is: 13,482.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,181.18 : 46,766.13 = 8,989.10 : x
  2. Step 2: Convert to fraction form
    31,181.18/46,766.13 = 8,989.10/x
  3. Step 3: Cross multiply
    31,181.18x = 46,766.13 × 8,989.10
  4. Step 4: Simplify right side
    31,181.18x = 420,385,419.18
  5. Step 5: Solve for x
    x = 420,385,419.18/31,181.18
  6. Step 6: Final answer
    x = 13,482.02

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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.