Home / 22,206.35-30,645.59-12,135.47

Finding the Fourth Proportional to 22,206.35, 30,645.59 and 12,135.47

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Solution

The fourth proportional to 22,206.35, 30,645.59 and 12,135.47 is: 16,747.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,206.35 : 30,645.59 = 12,135.47 : x
  2. Step 2: Convert to fraction form
    22,206.35/30,645.59 = 12,135.47/x
  3. Step 3: Cross multiply
    22,206.35x = 30,645.59 × 12,135.47
  4. Step 4: Simplify right side
    22,206.35x = 371,898,664.82
  5. Step 5: Solve for x
    x = 371,898,664.82/22,206.35
  6. Step 6: Final answer
    x = 16,747.40

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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.