Home / 25,766.79-38,637.97-9,979.21

Finding the Fourth Proportional to 25,766.79, 38,637.97 and 9,979.21

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Solution

The fourth proportional to 25,766.79, 38,637.97 and 9,979.21 is: 14,964.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,766.79 : 38,637.97 = 9,979.21 : x
  2. Step 2: Convert to fraction form
    25,766.79/38,637.97 = 9,979.21/x
  3. Step 3: Cross multiply
    25,766.79x = 38,637.97 × 9,979.21
  4. Step 4: Simplify right side
    25,766.79x = 385,576,501.30
  5. Step 5: Solve for x
    x = 385,576,501.30/25,766.79
  6. Step 6: Final answer
    x = 14,964.09

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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.