Home / 31,015.26-42,781.91-27,045.86

Finding the Fourth Proportional to 31,015.26, 42,781.91 and 27,045.86

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Solution

The fourth proportional to 31,015.26, 42,781.91 and 27,045.86 is: 37,306.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,015.26 : 42,781.91 = 27,045.86 : x
  2. Step 2: Convert to fraction form
    31,015.26/42,781.91 = 27,045.86/x
  3. Step 3: Cross multiply
    31,015.26x = 42,781.91 × 27,045.86
  4. Step 4: Simplify right side
    31,015.26x = 1,157,073,199.25
  5. Step 5: Solve for x
    x = 1,157,073,199.25/31,015.26
  6. Step 6: Final answer
    x = 37,306.58

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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.