Home / 40,423.20-55,788.12-22,521.12

Finding the Fourth Proportional to 40,423.20, 55,788.12 and 22,521.12

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Solution

The fourth proportional to 40,423.20, 55,788.12 and 22,521.12 is: 31,081.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,423.20 : 55,788.12 = 22,521.12 : x
  2. Step 2: Convert to fraction form
    40,423.20/55,788.12 = 22,521.12/x
  3. Step 3: Cross multiply
    40,423.20x = 55,788.12 × 22,521.12
  4. Step 4: Simplify right side
    40,423.20x = 1,256,410,945.09
  5. Step 5: Solve for x
    x = 1,256,410,945.09/40,423.20
  6. Step 6: Final answer
    x = 31,081.43

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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.