Home / 22,207.26-30,645.65-12,135.49

Finding the Fourth Proportional to 22,207.26, 30,645.65 and 12,135.49

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Solution

The fourth proportional to 22,207.26, 30,645.65 and 12,135.49 is: 16,746.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,207.26 : 30,645.65 = 12,135.49 : x
  2. Step 2: Convert to fraction form
    22,207.26/30,645.65 = 12,135.49/x
  3. Step 3: Cross multiply
    22,207.26x = 30,645.65 × 12,135.49
  4. Step 4: Simplify right side
    22,207.26x = 371,899,979.12
  5. Step 5: Solve for x
    x = 371,899,979.12/22,207.26
  6. Step 6: Final answer
    x = 16,746.77

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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.