Home / 23,151.35-31,949.10-13,079.90

Finding the Fourth Proportional to 23,151.35, 31,949.10 and 13,079.90

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Solution

The fourth proportional to 23,151.35, 31,949.10 and 13,079.90 is: 18,050.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,151.35 : 31,949.10 = 13,079.90 : x
  2. Step 2: Convert to fraction form
    23,151.35/31,949.10 = 13,079.90/x
  3. Step 3: Cross multiply
    23,151.35x = 31,949.10 × 13,079.90
  4. Step 4: Simplify right side
    23,151.35x = 417,891,112.96
  5. Step 5: Solve for x
    x = 417,891,112.96/23,151.35
  6. Step 6: Final answer
    x = 18,050.40

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1.5x scale

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.