Home / 29,121.12-43,610.40-13,543.20

Finding the Fourth Proportional to 29,121.12, 43,610.40 and 13,543.20

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Solution

The fourth proportional to 29,121.12, 43,610.40 and 13,543.20 is: 20,281.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,121.12 : 43,610.40 = 13,543.20 : x
  2. Step 2: Convert to fraction form
    29,121.12/43,610.40 = 13,543.20/x
  3. Step 3: Cross multiply
    29,121.12x = 43,610.40 × 13,543.20
  4. Step 4: Simplify right side
    29,121.12x = 590,624,369.28
  5. Step 5: Solve for x
    x = 590,624,369.28/29,121.12
  6. Step 6: Final answer
    x = 20,281.65

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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.