Home / 38,293.74-57,440.64-12,000.53

Finding the Fourth Proportional to 38,293.74, 57,440.64 and 12,000.53

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Solution

The fourth proportional to 38,293.74, 57,440.64 and 12,000.53 is: 18,000.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,293.74 : 57,440.64 = 12,000.53 : x
  2. Step 2: Convert to fraction form
    38,293.74/57,440.64 = 12,000.53/x
  3. Step 3: Cross multiply
    38,293.74x = 57,440.64 × 12,000.53
  4. Step 4: Simplify right side
    38,293.74x = 689,318,123.54
  5. Step 5: Solve for x
    x = 689,318,123.54/38,293.74
  6. Step 6: Final answer
    x = 18,000.80

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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.