Home / 26,781.52-40,157.56-21,270.16

Finding the Fourth Proportional to 26,781.52, 40,157.56 and 21,270.16

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Solution

The fourth proportional to 26,781.52, 40,157.56 and 21,270.16 is: 31,893.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,781.52 : 40,157.56 = 21,270.16 : x
  2. Step 2: Convert to fraction form
    26,781.52/40,157.56 = 21,270.16/x
  3. Step 3: Cross multiply
    26,781.52x = 40,157.56 × 21,270.16
  4. Step 4: Simplify right side
    26,781.52x = 854,157,726.41
  5. Step 5: Solve for x
    x = 854,157,726.41/26,781.52
  6. Step 6: Final answer
    x = 31,893.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.