Home / 40,210.38-55,490.12-22,305.20

Finding the Fourth Proportional to 40,210.38, 55,490.12 and 22,305.20

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Solution

The fourth proportional to 40,210.38, 55,490.12 and 22,305.20 is: 30,781.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,210.38 : 55,490.12 = 22,305.20 : x
  2. Step 2: Convert to fraction form
    40,210.38/55,490.12 = 22,305.20/x
  3. Step 3: Cross multiply
    40,210.38x = 55,490.12 × 22,305.20
  4. Step 4: Simplify right side
    40,210.38x = 1,237,718,224.62
  5. Step 5: Solve for x
    x = 1,237,718,224.62/40,210.38
  6. Step 6: Final answer
    x = 30,781.06

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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.