Home / 39,828.28-54,964.60-21,924.95

Finding the Fourth Proportional to 39,828.28, 54,964.60 and 21,924.95

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Solution

The fourth proportional to 39,828.28, 54,964.60 and 21,924.95 is: 30,257.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,828.28 : 54,964.60 = 21,924.95 : x
  2. Step 2: Convert to fraction form
    39,828.28/54,964.60 = 21,924.95/x
  3. Step 3: Cross multiply
    39,828.28x = 54,964.60 × 21,924.95
  4. Step 4: Simplify right side
    39,828.28x = 1,205,096,302.56
  5. Step 5: Solve for x
    x = 1,205,096,302.56/39,828.28
  6. Step 6: Final answer
    x = 30,257.30

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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.