Home / 26,999.40-40,499.10-21,422.55

Finding the Fourth Proportional to 26,999.40, 40,499.10 and 21,422.55

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Solution

The fourth proportional to 26,999.40, 40,499.10 and 21,422.55 is: 32,133.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,999.40 : 40,499.10 = 21,422.55 : x
  2. Step 2: Convert to fraction form
    26,999.40/40,499.10 = 21,422.55/x
  3. Step 3: Cross multiply
    26,999.40x = 40,499.10 × 21,422.55
  4. Step 4: Simplify right side
    26,999.40x = 867,593,994.71
  5. Step 5: Solve for x
    x = 867,593,994.71/26,999.40
  6. Step 6: Final answer
    x = 32,133.83

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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.