Home / 26,339.80-39,521.40-13,856.80

Finding the Fourth Proportional to 26,339.80, 39,521.40 and 13,856.80

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Solution

The fourth proportional to 26,339.80, 39,521.40 and 13,856.80 is: 20,791.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,339.80 : 39,521.40 = 13,856.80 : x
  2. Step 2: Convert to fraction form
    26,339.80/39,521.40 = 13,856.80/x
  3. Step 3: Cross multiply
    26,339.80x = 39,521.40 × 13,856.80
  4. Step 4: Simplify right side
    26,339.80x = 547,640,135.52
  5. Step 5: Solve for x
    x = 547,640,135.52/26,339.80
  6. Step 6: Final answer
    x = 20,791.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.