Home / 34,905.11-48,147.45-30,439.58

Finding the Fourth Proportional to 34,905.11, 48,147.45 and 30,439.58

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Solution

The fourth proportional to 34,905.11, 48,147.45 and 30,439.58 is: 41,987.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,905.11 : 48,147.45 = 30,439.58 : x
  2. Step 2: Convert to fraction form
    34,905.11/48,147.45 = 30,439.58/x
  3. Step 3: Cross multiply
    34,905.11x = 48,147.45 × 30,439.58
  4. Step 4: Simplify right side
    34,905.11x = 1,465,587,763.14
  5. Step 5: Solve for x
    x = 1,465,587,763.14/34,905.11
  6. Step 6: Final answer
    x = 41,987.78

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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.