Home / 34,253.28-47,272.88-20,823.36

Finding the Fourth Proportional to 34,253.28, 47,272.88 and 20,823.36

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Solution

The fourth proportional to 34,253.28, 47,272.88 and 20,823.36 is: 28,738.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,253.28 : 47,272.88 = 20,823.36 : x
  2. Step 2: Convert to fraction form
    34,253.28/47,272.88 = 20,823.36/x
  3. Step 3: Cross multiply
    34,253.28x = 47,272.88 × 20,823.36
  4. Step 4: Simplify right side
    34,253.28x = 984,380,198.48
  5. Step 5: Solve for x
    x = 984,380,198.48/34,253.28
  6. Step 6: Final answer
    x = 28,738.28

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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.