Home / 20,184.30-27,854.98-12,628.22

Finding the Fourth Proportional to 20,184.30, 27,854.98 and 12,628.22

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Solution

The fourth proportional to 20,184.30, 27,854.98 and 12,628.22 is: 17,427.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,184.30 : 27,854.98 = 12,628.22 : x
  2. Step 2: Convert to fraction form
    20,184.30/27,854.98 = 12,628.22/x
  3. Step 3: Cross multiply
    20,184.30x = 27,854.98 × 12,628.22
  4. Step 4: Simplify right side
    20,184.30x = 351,758,815.54
  5. Step 5: Solve for x
    x = 351,758,815.54/20,184.30
  6. Step 6: Final answer
    x = 17,427.35

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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.