Home / 38,027.52-57,058.56-20,478.72

Finding the Fourth Proportional to 38,027.52, 57,058.56 and 20,478.72

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Solution

The fourth proportional to 38,027.52, 57,058.56 and 20,478.72 is: 30,727.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,027.52 : 57,058.56 = 20,478.72 : x
  2. Step 2: Convert to fraction form
    38,027.52/57,058.56 = 20,478.72/x
  3. Step 3: Cross multiply
    38,027.52x = 57,058.56 × 20,478.72
  4. Step 4: Simplify right side
    38,027.52x = 1,168,486,273.84
  5. Step 5: Solve for x
    x = 1,168,486,273.84/38,027.52
  6. Step 6: Final answer
    x = 30,727.39

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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.