Home / 29,148.90-43,712.55-9,428.10

Finding the Fourth Proportional to 29,148.90, 43,712.55 and 9,428.10

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Solution

The fourth proportional to 29,148.90, 43,712.55 and 9,428.10 is: 14,138.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,148.90 : 43,712.55 = 9,428.10 : x
  2. Step 2: Convert to fraction form
    29,148.90/43,712.55 = 9,428.10/x
  3. Step 3: Cross multiply
    29,148.90x = 43,712.55 × 9,428.10
  4. Step 4: Simplify right side
    29,148.90x = 412,126,292.66
  5. Step 5: Solve for x
    x = 412,126,292.66/29,148.90
  6. Step 6: Final answer
    x = 14,138.66

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1.5x scale

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.