Home / 57,612.20-86,418.30-13,836.20

Finding the Fourth Proportional to 57,612.20, 86,418.30 and 13,836.20

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Solution

The fourth proportional to 57,612.20, 86,418.30 and 13,836.20 is: 20,754.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,612.20 : 86,418.30 = 13,836.20 : x
  2. Step 2: Convert to fraction form
    57,612.20/86,418.30 = 13,836.20/x
  3. Step 3: Cross multiply
    57,612.20x = 86,418.30 × 13,836.20
  4. Step 4: Simplify right side
    57,612.20x = 1,195,700,450.37
  5. Step 5: Solve for x
    x = 1,195,700,450.37/57,612.20
  6. Step 6: Final answer
    x = 20,754.29

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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.