Home / 29,171.20-43,778.40-19,307.20

Finding the Fourth Proportional to 29,171.20, 43,778.40 and 19,307.20

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Solution

The fourth proportional to 29,171.20, 43,778.40 and 19,307.20 is: 28,975.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,171.20 : 43,778.40 = 19,307.20 : x
  2. Step 2: Convert to fraction form
    29,171.20/43,778.40 = 19,307.20/x
  3. Step 3: Cross multiply
    29,171.20x = 43,778.40 × 19,307.20
  4. Step 4: Simplify right side
    29,171.20x = 845,238,324.48
  5. Step 5: Solve for x
    x = 845,238,324.48/29,171.20
  6. Step 6: Final answer
    x = 28,975.10

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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.