Home / 21,071.68-29,055.36-17,231.38

Finding the Fourth Proportional to 21,071.68, 29,055.36 and 17,231.38

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Solution

The fourth proportional to 21,071.68, 29,055.36 and 17,231.38 is: 23,760.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,071.68 : 29,055.36 = 17,231.38 : x
  2. Step 2: Convert to fraction form
    21,071.68/29,055.36 = 17,231.38/x
  3. Step 3: Cross multiply
    21,071.68x = 29,055.36 × 17,231.38
  4. Step 4: Simplify right side
    21,071.68x = 500,663,949.20
  5. Step 5: Solve for x
    x = 500,663,949.20/21,071.68
  6. Step 6: Final answer
    x = 23,760.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.