Home / 39,072.65-58,616.28-12,778.82

Finding the Fourth Proportional to 39,072.65, 58,616.28 and 12,778.82

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Solution

The fourth proportional to 39,072.65, 58,616.28 and 12,778.82 is: 19,170.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,072.65 : 58,616.28 = 12,778.82 : x
  2. Step 2: Convert to fraction form
    39,072.65/58,616.28 = 12,778.82/x
  3. Step 3: Cross multiply
    39,072.65x = 58,616.28 × 12,778.82
  4. Step 4: Simplify right side
    39,072.65x = 749,046,891.19
  5. Step 5: Solve for x
    x = 749,046,891.19/39,072.65
  6. Step 6: Final answer
    x = 19,170.62

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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.