Home / 19,883.78-27,440.27-10,931.96

Finding the Fourth Proportional to 19,883.78, 27,440.27 and 10,931.96

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Solution

The fourth proportional to 19,883.78, 27,440.27 and 10,931.96 is: 15,086.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,883.78 : 27,440.27 = 10,931.96 : x
  2. Step 2: Convert to fraction form
    19,883.78/27,440.27 = 10,931.96/x
  3. Step 3: Cross multiply
    19,883.78x = 27,440.27 × 10,931.96
  4. Step 4: Simplify right side
    19,883.78x = 299,975,988.96
  5. Step 5: Solve for x
    x = 299,975,988.96/19,883.78
  6. Step 6: Final answer
    x = 15,086.47

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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.