Home / 38,293.60-57,440.42-12,000.39

Finding the Fourth Proportional to 38,293.60, 57,440.42 and 12,000.39

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Solution

The fourth proportional to 38,293.60, 57,440.42 and 12,000.39 is: 18,000.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,293.60 : 57,440.42 = 12,000.39 : x
  2. Step 2: Convert to fraction form
    38,293.60/57,440.42 = 12,000.39/x
  3. Step 3: Cross multiply
    38,293.60x = 57,440.42 × 12,000.39
  4. Step 4: Simplify right side
    38,293.60x = 689,307,441.76
  5. Step 5: Solve for x
    x = 689,307,441.76/38,293.60
  6. Step 6: Final answer
    x = 18,000.59

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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.