Home / 43,170.74-64,760.75-13,589.46

Finding the Fourth Proportional to 43,170.74, 64,760.75 and 13,589.46

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Solution

The fourth proportional to 43,170.74, 64,760.75 and 13,589.46 is: 20,385.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,170.74 : 64,760.75 = 13,589.46 : x
  2. Step 2: Convert to fraction form
    43,170.74/64,760.75 = 13,589.46/x
  3. Step 3: Cross multiply
    43,170.74x = 64,760.75 × 13,589.46
  4. Step 4: Simplify right side
    43,170.74x = 880,063,621.70
  5. Step 5: Solve for x
    x = 880,063,621.70/43,170.74
  6. Step 6: Final answer
    x = 20,385.65

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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.