Home / 38,650.39-57,974.85-12,355.13

Finding the Fourth Proportional to 38,650.39, 57,974.85 and 12,355.13

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Solution

The fourth proportional to 38,650.39, 57,974.85 and 12,355.13 is: 18,532.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,650.39 : 57,974.85 = 12,355.13 : x
  2. Step 2: Convert to fraction form
    38,650.39/57,974.85 = 12,355.13/x
  3. Step 3: Cross multiply
    38,650.39x = 57,974.85 × 12,355.13
  4. Step 4: Simplify right side
    38,650.39x = 716,286,953.42
  5. Step 5: Solve for x
    x = 716,286,953.42/38,650.39
  6. Step 6: Final answer
    x = 18,532.46

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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.