Home / 40,305.12-55,624.50-22,403.04

Finding the Fourth Proportional to 40,305.12, 55,624.50 and 22,403.04

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Solution

The fourth proportional to 40,305.12, 55,624.50 and 22,403.04 is: 30,918.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,305.12 : 55,624.50 = 22,403.04 : x
  2. Step 2: Convert to fraction form
    40,305.12/55,624.50 = 22,403.04/x
  3. Step 3: Cross multiply
    40,305.12x = 55,624.50 × 22,403.04
  4. Step 4: Simplify right side
    40,305.12x = 1,246,157,898.48
  5. Step 5: Solve for x
    x = 1,246,157,898.48/40,305.12
  6. Step 6: Final answer
    x = 30,918.10

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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.