Home / 29,531.12-40,737-18,203.08

Finding the Fourth Proportional to 29,531.12, 40,737 and 18,203.08

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Solution

The fourth proportional to 29,531.12, 40,737 and 18,203.08 is: 25,110.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,531.12 : 40,737 = 18,203.08 : x
  2. Step 2: Convert to fraction form
    29,531.12/40,737 = 18,203.08/x
  3. Step 3: Cross multiply
    29,531.12x = 40,737 × 18,203.08
  4. Step 4: Simplify right side
    29,531.12x = 741,538,869.96
  5. Step 5: Solve for x
    x = 741,538,869.96/29,531.12
  6. Step 6: Final answer
    x = 25,110.42

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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.