Home / 23,149.45-31,946.08-13,081.15

Finding the Fourth Proportional to 23,149.45, 31,946.08 and 13,081.15

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Solution

The fourth proportional to 23,149.45, 31,946.08 and 13,081.15 is: 18,051.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,149.45 : 31,946.08 = 13,081.15 : x
  2. Step 2: Convert to fraction form
    23,149.45/31,946.08 = 13,081.15/x
  3. Step 3: Cross multiply
    23,149.45x = 31,946.08 × 13,081.15
  4. Step 4: Simplify right side
    23,149.45x = 417,891,464.39
  5. Step 5: Solve for x
    x = 417,891,464.39/23,149.45
  6. Step 6: Final answer
    x = 18,051.90

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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.