Home / 40,035.15-55,247.90-22,129.76

Finding the Fourth Proportional to 40,035.15, 55,247.90 and 22,129.76

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Solution

The fourth proportional to 40,035.15, 55,247.90 and 22,129.76 is: 30,538.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,035.15 : 55,247.90 = 22,129.76 : x
  2. Step 2: Convert to fraction form
    40,035.15/55,247.90 = 22,129.76/x
  3. Step 3: Cross multiply
    40,035.15x = 55,247.90 × 22,129.76
  4. Step 4: Simplify right side
    40,035.15x = 1,222,622,767.50
  5. Step 5: Solve for x
    x = 1,222,622,767.50/40,035.15
  6. Step 6: Final answer
    x = 30,538.73

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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.