Home / 38,421.20-57,639.36-16,234.40

Finding the Fourth Proportional to 38,421.20, 57,639.36 and 16,234.40

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Solution

The fourth proportional to 38,421.20, 57,639.36 and 16,234.40 is: 24,354.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,421.20 : 57,639.36 = 16,234.40 : x
  2. Step 2: Convert to fraction form
    38,421.20/57,639.36 = 16,234.40/x
  3. Step 3: Cross multiply
    38,421.20x = 57,639.36 × 16,234.40
  4. Step 4: Simplify right side
    38,421.20x = 935,740,425.98
  5. Step 5: Solve for x
    x = 935,740,425.98/38,421.20
  6. Step 6: Final answer
    x = 24,354.79

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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.