Home / 29,422.47-40,602.69-21,902.43

Finding the Fourth Proportional to 29,422.47, 40,602.69 and 21,902.43

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Solution

The fourth proportional to 29,422.47, 40,602.69 and 21,902.43 is: 30,225.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,422.47 : 40,602.69 = 21,902.43 : x
  2. Step 2: Convert to fraction form
    29,422.47/40,602.69 = 21,902.43/x
  3. Step 3: Cross multiply
    29,422.47x = 40,602.69 × 21,902.43
  4. Step 4: Simplify right side
    29,422.47x = 889,297,575.54
  5. Step 5: Solve for x
    x = 889,297,575.54/29,422.47
  6. Step 6: Final answer
    x = 30,225.12

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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.