Home / 20,474.94-28,255.34-11,522.60

Finding the Fourth Proportional to 20,474.94, 28,255.34 and 11,522.60

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Solution

The fourth proportional to 20,474.94, 28,255.34 and 11,522.60 is: 15,901.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,474.94 : 28,255.34 = 11,522.60 : x
  2. Step 2: Convert to fraction form
    20,474.94/28,255.34 = 11,522.60/x
  3. Step 3: Cross multiply
    20,474.94x = 28,255.34 × 11,522.60
  4. Step 4: Simplify right side
    20,474.94x = 325,574,781.79
  5. Step 5: Solve for x
    x = 325,574,781.79/20,474.94
  6. Step 6: Final answer
    x = 15,901.13

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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.