Home / 38,220.71-57,324.39-10,143.60

Finding the Fourth Proportional to 38,220.71, 57,324.39 and 10,143.60

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Solution

The fourth proportional to 38,220.71, 57,324.39 and 10,143.60 is: 15,213.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,220.71 : 57,324.39 = 10,143.60 : x
  2. Step 2: Convert to fraction form
    38,220.71/57,324.39 = 10,143.60/x
  3. Step 3: Cross multiply
    38,220.71x = 57,324.39 × 10,143.60
  4. Step 4: Simplify right side
    38,220.71x = 581,475,564.45
  5. Step 5: Solve for x
    x = 581,475,564.45/38,220.71
  6. Step 6: Final answer
    x = 15,213.63

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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.