Home / 38,285.34-57,427.29-20,866.02

Finding the Fourth Proportional to 38,285.34, 57,427.29 and 20,866.02

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Solution

The fourth proportional to 38,285.34, 57,427.29 and 20,866.02 is: 31,298.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,285.34 : 57,427.29 = 20,866.02 : x
  2. Step 2: Convert to fraction form
    38,285.34/57,427.29 = 20,866.02/x
  3. Step 3: Cross multiply
    38,285.34x = 57,427.29 × 20,866.02
  4. Step 4: Simplify right side
    38,285.34x = 1,198,278,981.69
  5. Step 5: Solve for x
    x = 1,198,278,981.69/38,285.34
  6. Step 6: Final answer
    x = 31,298.64

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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.