Home / 29,721.15-41,019.38-18,394.28

Finding the Fourth Proportional to 29,721.15, 41,019.38 and 18,394.28

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Solution

The fourth proportional to 29,721.15, 41,019.38 and 18,394.28 is: 25,386.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,721.15 : 41,019.38 = 18,394.28 : x
  2. Step 2: Convert to fraction form
    29,721.15/41,019.38 = 18,394.28/x
  3. Step 3: Cross multiply
    29,721.15x = 41,019.38 × 18,394.28
  4. Step 4: Simplify right side
    29,721.15x = 754,521,961.15
  5. Step 5: Solve for x
    x = 754,521,961.15/29,721.15
  6. Step 6: Final answer
    x = 25,386.70

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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.