Home / 22,308.51-30,785.49-12,876.87

Finding the Fourth Proportional to 22,308.51, 30,785.49 and 12,876.87

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Solution

The fourth proportional to 22,308.51, 30,785.49 and 12,876.87 is: 17,769.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,308.51 : 30,785.49 = 12,876.87 : x
  2. Step 2: Convert to fraction form
    22,308.51/30,785.49 = 12,876.87/x
  3. Step 3: Cross multiply
    22,308.51x = 30,785.49 × 12,876.87
  4. Step 4: Simplify right side
    22,308.51x = 396,420,752.62
  5. Step 5: Solve for x
    x = 396,420,752.62/22,308.51
  6. Step 6: Final answer
    x = 17,769.93

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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.