Home / 40,129.16-55,377.30-22,223.24

Finding the Fourth Proportional to 40,129.16, 55,377.30 and 22,223.24

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Solution

The fourth proportional to 40,129.16, 55,377.30 and 22,223.24 is: 30,667.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,129.16 : 55,377.30 = 22,223.24 : x
  2. Step 2: Convert to fraction form
    40,129.16/55,377.30 = 22,223.24/x
  3. Step 3: Cross multiply
    40,129.16x = 55,377.30 × 22,223.24
  4. Step 4: Simplify right side
    40,129.16x = 1,230,663,028.45
  5. Step 5: Solve for x
    x = 1,230,663,028.45/40,129.16
  6. Step 6: Final answer
    x = 30,667.55

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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.