Home / 22,206.42-30,645.26-12,135.28

Finding the Fourth Proportional to 22,206.42, 30,645.26 and 12,135.28

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Solution

The fourth proportional to 22,206.42, 30,645.26 and 12,135.28 is: 16,746.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,206.42 : 30,645.26 = 12,135.28 : x
  2. Step 2: Convert to fraction form
    22,206.42/30,645.26 = 12,135.28/x
  3. Step 3: Cross multiply
    22,206.42x = 30,645.26 × 12,135.28
  4. Step 4: Simplify right side
    22,206.42x = 371,888,810.77
  5. Step 5: Solve for x
    x = 371,888,810.77/22,206.42
  6. Step 6: Final answer
    x = 16,746.91

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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.