Home / 19,884.25-27,440.90-10,931.91

Finding the Fourth Proportional to 19,884.25, 27,440.90 and 10,931.91

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Solution

The fourth proportional to 19,884.25, 27,440.90 and 10,931.91 is: 15,086.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,884.25 : 27,440.90 = 10,931.91 : x
  2. Step 2: Convert to fraction form
    19,884.25/27,440.90 = 10,931.91/x
  3. Step 3: Cross multiply
    19,884.25x = 27,440.90 × 10,931.91
  4. Step 4: Simplify right side
    19,884.25x = 299,981,449.12
  5. Step 5: Solve for x
    x = 299,981,449.12/19,884.25
  6. Step 6: Final answer
    x = 15,086.38

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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.