Home / 40,130.38-55,380.11-22,225.01

Finding the Fourth Proportional to 40,130.38, 55,380.11 and 22,225.01

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Solution

The fourth proportional to 40,130.38, 55,380.11 and 22,225.01 is: 30,670.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,130.38 : 55,380.11 = 22,225.01 : x
  2. Step 2: Convert to fraction form
    40,130.38/55,380.11 = 22,225.01/x
  3. Step 3: Cross multiply
    40,130.38x = 55,380.11 × 22,225.01
  4. Step 4: Simplify right side
    40,130.38x = 1,230,823,110.53
  5. Step 5: Solve for x
    x = 1,230,823,110.53/40,130.38
  6. Step 6: Final answer
    x = 30,670.61

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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.