Home / 26,251.72-39,389.19-13,768.75

Finding the Fourth Proportional to 26,251.72, 39,389.19 and 13,768.75

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Solution

The fourth proportional to 26,251.72, 39,389.19 and 13,768.75 is: 20,659.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,251.72 : 39,389.19 = 13,768.75 : x
  2. Step 2: Convert to fraction form
    26,251.72/39,389.19 = 13,768.75/x
  3. Step 3: Cross multiply
    26,251.72x = 39,389.19 × 13,768.75
  4. Step 4: Simplify right side
    26,251.72x = 542,339,909.81
  5. Step 5: Solve for x
    x = 542,339,909.81/26,251.72
  6. Step 6: Final answer
    x = 20,659.21

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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.