Home / 20,392.56-30,696.30-17,385.84

Finding the Fourth Proportional to 20,392.56, 30,696.30 and 17,385.84

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Solution

The fourth proportional to 20,392.56, 30,696.30 and 17,385.84 is: 26,170.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,392.56 : 30,696.30 = 17,385.84 : x
  2. Step 2: Convert to fraction form
    20,392.56/30,696.30 = 17,385.84/x
  3. Step 3: Cross multiply
    20,392.56x = 30,696.30 × 17,385.84
  4. Step 4: Simplify right side
    20,392.56x = 533,680,960.39
  5. Step 5: Solve for x
    x = 533,680,960.39/20,392.56
  6. Step 6: Final answer
    x = 26,170.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.