Home / 38,428.36-57,641.10-12,134.68

Finding the Fourth Proportional to 38,428.36, 57,641.10 and 12,134.68

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Solution

The fourth proportional to 38,428.36, 57,641.10 and 12,134.68 is: 18,201.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,428.36 : 57,641.10 = 12,134.68 : x
  2. Step 2: Convert to fraction form
    38,428.36/57,641.10 = 12,134.68/x
  3. Step 3: Cross multiply
    38,428.36x = 57,641.10 × 12,134.68
  4. Step 4: Simplify right side
    38,428.36x = 699,456,303.35
  5. Step 5: Solve for x
    x = 699,456,303.35/38,428.36
  6. Step 6: Final answer
    x = 18,201.57

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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.