Home / 26,143.20-36,072.72-15,535.44

Finding the Fourth Proportional to 26,143.20, 36,072.72 and 15,535.44

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Solution

The fourth proportional to 26,143.20, 36,072.72 and 15,535.44 is: 21,436.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,143.20 : 36,072.72 = 15,535.44 : x
  2. Step 2: Convert to fraction form
    26,143.20/36,072.72 = 15,535.44/x
  3. Step 3: Cross multiply
    26,143.20x = 36,072.72 × 15,535.44
  4. Step 4: Simplify right side
    26,143.20x = 560,405,577.20
  5. Step 5: Solve for x
    x = 560,405,577.20/26,143.20
  6. Step 6: Final answer
    x = 21,436.00

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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.