Home / 20,012.70-27,610.56-12,454.59

Finding the Fourth Proportional to 20,012.70, 27,610.56 and 12,454.59

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Solution

The fourth proportional to 20,012.70, 27,610.56 and 12,454.59 is: 17,183.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,012.70 : 27,610.56 = 12,454.59 : x
  2. Step 2: Convert to fraction form
    20,012.70/27,610.56 = 12,454.59/x
  3. Step 3: Cross multiply
    20,012.70x = 27,610.56 × 12,454.59
  4. Step 4: Simplify right side
    20,012.70x = 343,878,204.47
  5. Step 5: Solve for x
    x = 343,878,204.47/20,012.70
  6. Step 6: Final answer
    x = 17,183.00

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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.