Home / 26,778.72-39,885-25,373.28

Finding the Fourth Proportional to 26,778.72, 39,885 and 25,373.28

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Solution

The fourth proportional to 26,778.72, 39,885 and 25,373.28 is: 37,791.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,778.72 : 39,885 = 25,373.28 : x
  2. Step 2: Convert to fraction form
    26,778.72/39,885 = 25,373.28/x
  3. Step 3: Cross multiply
    26,778.72x = 39,885 × 25,373.28
  4. Step 4: Simplify right side
    26,778.72x = 1,012,013,272.80
  5. Step 5: Solve for x
    x = 1,012,013,272.80/26,778.72
  6. Step 6: Final answer
    x = 37,791.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.