Home / 40,113.72-55,354.59-22,207.68

Finding the Fourth Proportional to 40,113.72, 55,354.59 and 22,207.68

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Solution

The fourth proportional to 40,113.72, 55,354.59 and 22,207.68 is: 30,645.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,113.72 : 55,354.59 = 22,207.68 : x
  2. Step 2: Convert to fraction form
    40,113.72/55,354.59 = 22,207.68/x
  3. Step 3: Cross multiply
    40,113.72x = 55,354.59 × 22,207.68
  4. Step 4: Simplify right side
    40,113.72x = 1,229,297,021.25
  5. Step 5: Solve for x
    x = 1,229,297,021.25/40,113.72
  6. Step 6: Final answer
    x = 30,645.30

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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.