Home / 20,551.96-28,360.07-12,593.09

Finding the Fourth Proportional to 20,551.96, 28,360.07 and 12,593.09

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Solution

The fourth proportional to 20,551.96, 28,360.07 and 12,593.09 is: 17,377.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,551.96 : 28,360.07 = 12,593.09 : x
  2. Step 2: Convert to fraction form
    20,551.96/28,360.07 = 12,593.09/x
  3. Step 3: Cross multiply
    20,551.96x = 28,360.07 × 12,593.09
  4. Step 4: Simplify right side
    20,551.96x = 357,140,850.95
  5. Step 5: Solve for x
    x = 357,140,850.95/20,551.96
  6. Step 6: Final answer
    x = 17,377.46

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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.