Home / 20,255.56-30,283.50-17,170.08

Finding the Fourth Proportional to 20,255.56, 30,283.50 and 17,170.08

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Solution

The fourth proportional to 20,255.56, 30,283.50 and 17,170.08 is: 25,670.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,255.56 : 30,283.50 = 17,170.08 : x
  2. Step 2: Convert to fraction form
    20,255.56/30,283.50 = 17,170.08/x
  3. Step 3: Cross multiply
    20,255.56x = 30,283.50 × 17,170.08
  4. Step 4: Simplify right side
    20,255.56x = 519,970,117.68
  5. Step 5: Solve for x
    x = 519,970,117.68/20,255.56
  6. Step 6: Final answer
    x = 25,670.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.