Home / 31,531.14-43,514.82-18,102.42

Finding the Fourth Proportional to 31,531.14, 43,514.82 and 18,102.42

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Solution

The fourth proportional to 31,531.14, 43,514.82 and 18,102.42 is: 24,982.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,531.14 : 43,514.82 = 18,102.42 : x
  2. Step 2: Convert to fraction form
    31,531.14/43,514.82 = 18,102.42/x
  3. Step 3: Cross multiply
    31,531.14x = 43,514.82 × 18,102.42
  4. Step 4: Simplify right side
    31,531.14x = 787,723,547.86
  5. Step 5: Solve for x
    x = 787,723,547.86/31,531.14
  6. Step 6: Final answer
    x = 24,982.40

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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.