Home / 19,925.20-27,496.78-10,972.68

Finding the Fourth Proportional to 19,925.20, 27,496.78 and 10,972.68

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Solution

The fourth proportional to 19,925.20, 27,496.78 and 10,972.68 is: 15,142.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,925.20 : 27,496.78 = 10,972.68 : x
  2. Step 2: Convert to fraction form
    19,925.20/27,496.78 = 10,972.68/x
  3. Step 3: Cross multiply
    19,925.20x = 27,496.78 × 10,972.68
  4. Step 4: Simplify right side
    19,925.20x = 301,713,367.97
  5. Step 5: Solve for x
    x = 301,713,367.97/19,925.20
  6. Step 6: Final answer
    x = 15,142.30

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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.