Home / 20,255.05-27,952.05-12,291.94

Finding the Fourth Proportional to 20,255.05, 27,952.05 and 12,291.94

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Solution

The fourth proportional to 20,255.05, 27,952.05 and 12,291.94 is: 16,962.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,255.05 : 27,952.05 = 12,291.94 : x
  2. Step 2: Convert to fraction form
    20,255.05/27,952.05 = 12,291.94/x
  3. Step 3: Cross multiply
    20,255.05x = 27,952.05 × 12,291.94
  4. Step 4: Simplify right side
    20,255.05x = 343,584,921.48
  5. Step 5: Solve for x
    x = 343,584,921.48/20,255.05
  6. Step 6: Final answer
    x = 16,962.93

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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.