Home / 26,139.38-36,067.16-15,381.38

Finding the Fourth Proportional to 26,139.38, 36,067.16 and 15,381.38

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Solution

The fourth proportional to 26,139.38, 36,067.16 and 15,381.38 is: 21,223.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,139.38 : 36,067.16 = 15,381.38 : x
  2. Step 2: Convert to fraction form
    26,139.38/36,067.16 = 15,381.38/x
  3. Step 3: Cross multiply
    26,139.38x = 36,067.16 × 15,381.38
  4. Step 4: Simplify right side
    26,139.38x = 554,762,693.48
  5. Step 5: Solve for x
    x = 554,762,693.48/26,139.38
  6. Step 6: Final answer
    x = 21,223.25

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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.