Home / 19,343.88-29,020.14-7,657.20

Finding the Fourth Proportional to 19,343.88, 29,020.14 and 7,657.20

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Solution

The fourth proportional to 19,343.88, 29,020.14 and 7,657.20 is: 11,487.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,343.88 : 29,020.14 = 7,657.20 : x
  2. Step 2: Convert to fraction form
    19,343.88/29,020.14 = 7,657.20/x
  3. Step 3: Cross multiply
    19,343.88x = 29,020.14 × 7,657.20
  4. Step 4: Simplify right side
    19,343.88x = 222,213,016.01
  5. Step 5: Solve for x
    x = 222,213,016.01/19,343.88
  6. Step 6: Final answer
    x = 11,487.51

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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.