Home / 40,809-56,319.11-22,905.22

Finding the Fourth Proportional to 40,809, 56,319.11 and 22,905.22

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Solution

The fourth proportional to 40,809, 56,319.11 and 22,905.22 is: 31,610.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,809 : 56,319.11 = 22,905.22 : x
  2. Step 2: Convert to fraction form
    40,809/56,319.11 = 22,905.22/x
  3. Step 3: Cross multiply
    40,809x = 56,319.11 × 22,905.22
  4. Step 4: Simplify right side
    40,809x = 1,290,001,604.75
  5. Step 5: Solve for x
    x = 1,290,001,604.75/40,809
  6. Step 6: Final answer
    x = 31,610.71

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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.