Home / 19,882.67-27,439.56-10,931.76

Finding the Fourth Proportional to 19,882.67, 27,439.56 and 10,931.76

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Solution

The fourth proportional to 19,882.67, 27,439.56 and 10,931.76 is: 15,086.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,882.67 : 27,439.56 = 10,931.76 : x
  2. Step 2: Convert to fraction form
    19,882.67/27,439.56 = 10,931.76/x
  3. Step 3: Cross multiply
    19,882.67x = 27,439.56 × 10,931.76
  4. Step 4: Simplify right side
    19,882.67x = 299,962,684.43
  5. Step 5: Solve for x
    x = 299,962,684.43/19,882.67
  6. Step 6: Final answer
    x = 15,086.64

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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.