Home / 39,179.40-58,776.54-12,891.72

Finding the Fourth Proportional to 39,179.40, 58,776.54 and 12,891.72

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Solution

The fourth proportional to 39,179.40, 58,776.54 and 12,891.72 is: 19,340.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,179.40 : 58,776.54 = 12,891.72 : x
  2. Step 2: Convert to fraction form
    39,179.40/58,776.54 = 12,891.72/x
  3. Step 3: Cross multiply
    39,179.40x = 58,776.54 × 12,891.72
  4. Step 4: Simplify right side
    39,179.40x = 757,730,696.25
  5. Step 5: Solve for x
    x = 757,730,696.25/39,179.40
  6. Step 6: Final answer
    x = 19,340.03

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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.