Home / 34,854.75-48,099.78-18,939.20

Finding the Fourth Proportional to 34,854.75, 48,099.78 and 18,939.20

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Solution

The fourth proportional to 34,854.75, 48,099.78 and 18,939.20 is: 26,136.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,854.75 : 48,099.78 = 18,939.20 : x
  2. Step 2: Convert to fraction form
    34,854.75/48,099.78 = 18,939.20/x
  3. Step 3: Cross multiply
    34,854.75x = 48,099.78 × 18,939.20
  4. Step 4: Simplify right side
    34,854.75x = 910,971,112.88
  5. Step 5: Solve for x
    x = 910,971,112.88/34,854.75
  6. Step 6: Final answer
    x = 26,136.21

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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.