Home / 35,480.75-53,221.13-12,107.20

Finding the Fourth Proportional to 35,480.75, 53,221.13 and 12,107.20

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Solution

The fourth proportional to 35,480.75, 53,221.13 and 12,107.20 is: 18,160.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,480.75 : 53,221.13 = 12,107.20 : x
  2. Step 2: Convert to fraction form
    35,480.75/53,221.13 = 12,107.20/x
  3. Step 3: Cross multiply
    35,480.75x = 53,221.13 × 12,107.20
  4. Step 4: Simplify right side
    35,480.75x = 644,358,538.49
  5. Step 5: Solve for x
    x = 644,358,538.49/35,480.75
  6. Step 6: Final answer
    x = 18,160.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.