Home / 38,276.33-57,414.51-20,856.87

Finding the Fourth Proportional to 38,276.33, 57,414.51 and 20,856.87

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Solution

The fourth proportional to 38,276.33, 57,414.51 and 20,856.87 is: 31,285.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,276.33 : 57,414.51 = 20,856.87 : x
  2. Step 2: Convert to fraction form
    38,276.33/57,414.51 = 20,856.87/x
  3. Step 3: Cross multiply
    38,276.33x = 57,414.51 × 20,856.87
  4. Step 4: Simplify right side
    38,276.33x = 1,197,486,971.18
  5. Step 5: Solve for x
    x = 1,197,486,971.18/38,276.33
  6. Step 6: Final answer
    x = 31,285.32

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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.