Home / 39,115.06-58,672.40-12,819.64

Finding the Fourth Proportional to 39,115.06, 58,672.40 and 12,819.64

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Solution

The fourth proportional to 39,115.06, 58,672.40 and 12,819.64 is: 19,229.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,115.06 : 58,672.40 = 12,819.64 : x
  2. Step 2: Convert to fraction form
    39,115.06/58,672.40 = 12,819.64/x
  3. Step 3: Cross multiply
    39,115.06x = 58,672.40 × 12,819.64
  4. Step 4: Simplify right side
    39,115.06x = 752,159,045.94
  5. Step 5: Solve for x
    x = 752,159,045.94/39,115.06
  6. Step 6: Final answer
    x = 19,229.40

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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.