Home / 43,028.71-64,543.11-13,446.70

Finding the Fourth Proportional to 43,028.71, 64,543.11 and 13,446.70

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Solution

The fourth proportional to 43,028.71, 64,543.11 and 13,446.70 is: 20,170.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,028.71 : 64,543.11 = 13,446.70 : x
  2. Step 2: Convert to fraction form
    43,028.71/64,543.11 = 13,446.70/x
  3. Step 3: Cross multiply
    43,028.71x = 64,543.11 × 13,446.70
  4. Step 4: Simplify right side
    43,028.71x = 867,891,837.24
  5. Step 5: Solve for x
    x = 867,891,837.24/43,028.71
  6. Step 6: Final answer
    x = 20,170.06

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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.