Home / 26,025.12-35,917.92-15,418.80

Finding the Fourth Proportional to 26,025.12, 35,917.92 and 15,418.80

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Solution

The fourth proportional to 26,025.12, 35,917.92 and 15,418.80 is: 21,279.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,025.12 : 35,917.92 = 15,418.80 : x
  2. Step 2: Convert to fraction form
    26,025.12/35,917.92 = 15,418.80/x
  3. Step 3: Cross multiply
    26,025.12x = 35,917.92 × 15,418.80
  4. Step 4: Simplify right side
    26,025.12x = 553,811,224.90
  5. Step 5: Solve for x
    x = 553,811,224.90/26,025.12
  6. Step 6: Final answer
    x = 21,279.87

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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.