Home / 34,257.24-47,274.12-20,828.88

Finding the Fourth Proportional to 34,257.24, 47,274.12 and 20,828.88

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Solution

The fourth proportional to 34,257.24, 47,274.12 and 20,828.88 is: 28,743.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,257.24 : 47,274.12 = 20,828.88 : x
  2. Step 2: Convert to fraction form
    34,257.24/47,274.12 = 20,828.88/x
  3. Step 3: Cross multiply
    34,257.24x = 47,274.12 × 20,828.88
  4. Step 4: Simplify right side
    34,257.24x = 984,666,972.59
  5. Step 5: Solve for x
    x = 984,666,972.59/34,257.24
  6. Step 6: Final answer
    x = 28,743.32

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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.