Home / 22,305.04-30,778.70-12,876.64

Finding the Fourth Proportional to 22,305.04, 30,778.70 and 12,876.64

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Solution

The fourth proportional to 22,305.04, 30,778.70 and 12,876.64 is: 17,768.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,305.04 : 30,778.70 = 12,876.64 : x
  2. Step 2: Convert to fraction form
    22,305.04/30,778.70 = 12,876.64/x
  3. Step 3: Cross multiply
    22,305.04x = 30,778.70 × 12,876.64
  4. Step 4: Simplify right side
    22,305.04x = 396,326,239.57
  5. Step 5: Solve for x
    x = 396,326,239.57/22,305.04
  6. Step 6: Final answer
    x = 17,768.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.