Home / 38,507.60-57,749.88-20,029.52

Finding the Fourth Proportional to 38,507.60, 57,749.88 and 20,029.52

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Solution

The fourth proportional to 38,507.60, 57,749.88 and 20,029.52 is: 30,038.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,507.60 : 57,749.88 = 20,029.52 : x
  2. Step 2: Convert to fraction form
    38,507.60/57,749.88 = 20,029.52/x
  3. Step 3: Cross multiply
    38,507.60x = 57,749.88 × 20,029.52
  4. Step 4: Simplify right side
    38,507.60x = 1,156,702,376.46
  5. Step 5: Solve for x
    x = 1,156,702,376.46/38,507.60
  6. Step 6: Final answer
    x = 30,038.29

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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.