Home / 20,261.61-30,393.90-5,470.20

Finding the Fourth Proportional to 20,261.61, 30,393.90 and 5,470.20

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Solution

The fourth proportional to 20,261.61, 30,393.90 and 5,470.20 is: 8,205.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,261.61 : 30,393.90 = 5,470.20 : x
  2. Step 2: Convert to fraction form
    20,261.61/30,393.90 = 5,470.20/x
  3. Step 3: Cross multiply
    20,261.61x = 30,393.90 × 5,470.20
  4. Step 4: Simplify right side
    20,261.61x = 166,260,711.78
  5. Step 5: Solve for x
    x = 166,260,711.78/20,261.61
  6. Step 6: Final answer
    x = 8,205.70

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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.