Home / 19,874.49-27,427.18-10,921.46

Finding the Fourth Proportional to 19,874.49, 27,427.18 and 10,921.46

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Solution

The fourth proportional to 19,874.49, 27,427.18 and 10,921.46 is: 15,071.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,874.49 : 27,427.18 = 10,921.46 : x
  2. Step 2: Convert to fraction form
    19,874.49/27,427.18 = 10,921.46/x
  3. Step 3: Cross multiply
    19,874.49x = 27,427.18 × 10,921.46
  4. Step 4: Simplify right side
    19,874.49x = 299,544,684.84
  5. Step 5: Solve for x
    x = 299,544,684.84/19,874.49
  6. Step 6: Final answer
    x = 15,071.82

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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.