Home / 26,791.05-36,981.21-18,287.08

Finding the Fourth Proportional to 26,791.05, 36,981.21 and 18,287.08

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Solution

The fourth proportional to 26,791.05, 36,981.21 and 18,287.08 is: 25,242.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,791.05 : 36,981.21 = 18,287.08 : x
  2. Step 2: Convert to fraction form
    26,791.05/36,981.21 = 18,287.08/x
  3. Step 3: Cross multiply
    26,791.05x = 36,981.21 × 18,287.08
  4. Step 4: Simplify right side
    26,791.05x = 676,278,345.77
  5. Step 5: Solve for x
    x = 676,278,345.77/26,791.05
  6. Step 6: Final answer
    x = 25,242.70

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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.