Home / 26,720.20-40,112.70-13,565.80

Finding the Fourth Proportional to 26,720.20, 40,112.70 and 13,565.80

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Solution

The fourth proportional to 26,720.20, 40,112.70 and 13,565.80 is: 20,365.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,720.20 : 40,112.70 = 13,565.80 : x
  2. Step 2: Convert to fraction form
    26,720.20/40,112.70 = 13,565.80/x
  3. Step 3: Cross multiply
    26,720.20x = 40,112.70 × 13,565.80
  4. Step 4: Simplify right side
    26,720.20x = 544,160,865.66
  5. Step 5: Solve for x
    x = 544,160,865.66/26,720.20
  6. Step 6: Final answer
    x = 20,365.15

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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.