Home / 19,913.42-27,471.29-12,842.12

Finding the Fourth Proportional to 19,913.42, 27,471.29 and 12,842.12

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Solution

The fourth proportional to 19,913.42, 27,471.29 and 12,842.12 is: 17,716.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,913.42 : 27,471.29 = 12,842.12 : x
  2. Step 2: Convert to fraction form
    19,913.42/27,471.29 = 12,842.12/x
  3. Step 3: Cross multiply
    19,913.42x = 27,471.29 × 12,842.12
  4. Step 4: Simplify right side
    19,913.42x = 352,789,401.17
  5. Step 5: Solve for x
    x = 352,789,401.17/19,913.42
  6. Step 6: Final answer
    x = 17,716.17

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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.