Home / 38,228.56-57,340.81-11,930.29

Finding the Fourth Proportional to 38,228.56, 57,340.81 and 11,930.29

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Solution

The fourth proportional to 38,228.56, 57,340.81 and 11,930.29 is: 17,894.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,228.56 : 57,340.81 = 11,930.29 : x
  2. Step 2: Convert to fraction form
    38,228.56/57,340.81 = 11,930.29/x
  3. Step 3: Cross multiply
    38,228.56x = 57,340.81 × 11,930.29
  4. Step 4: Simplify right side
    38,228.56x = 684,092,363.70
  5. Step 5: Solve for x
    x = 684,092,363.70/38,228.56
  6. Step 6: Final answer
    x = 17,894.80

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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.