Home / 20,250.04-27,945.61-12,695.66

Finding the Fourth Proportional to 20,250.04, 27,945.61 and 12,695.66

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Solution

The fourth proportional to 20,250.04, 27,945.61 and 12,695.66 is: 17,520.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,250.04 : 27,945.61 = 12,695.66 : x
  2. Step 2: Convert to fraction form
    20,250.04/27,945.61 = 12,695.66/x
  3. Step 3: Cross multiply
    20,250.04x = 27,945.61 × 12,695.66
  4. Step 4: Simplify right side
    20,250.04x = 354,787,899.57
  5. Step 5: Solve for x
    x = 354,787,899.57/20,250.04
  6. Step 6: Final answer
    x = 17,520.36

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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.