Home / 29,422.82-40,603.16-21,902.78

Finding the Fourth Proportional to 29,422.82, 40,603.16 and 21,902.78

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Solution

The fourth proportional to 29,422.82, 40,603.16 and 21,902.78 is: 30,225.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,422.82 : 40,603.16 = 21,902.78 : x
  2. Step 2: Convert to fraction form
    29,422.82/40,603.16 = 21,902.78/x
  3. Step 3: Cross multiply
    29,422.82x = 40,603.16 × 21,902.78
  4. Step 4: Simplify right side
    29,422.82x = 889,322,080.78
  5. Step 5: Solve for x
    x = 889,322,080.78/29,422.82
  6. Step 6: Final answer
    x = 30,225.59

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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.