Home / 19,868.88-27,419.20-10,916.56

Finding the Fourth Proportional to 19,868.88, 27,419.20 and 10,916.56

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Solution

The fourth proportional to 19,868.88, 27,419.20 and 10,916.56 is: 15,064.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,868.88 : 27,419.20 = 10,916.56 : x
  2. Step 2: Convert to fraction form
    19,868.88/27,419.20 = 10,916.56/x
  3. Step 3: Cross multiply
    19,868.88x = 27,419.20 × 10,916.56
  4. Step 4: Simplify right side
    19,868.88x = 299,323,341.95
  5. Step 5: Solve for x
    x = 299,323,341.95/19,868.88
  6. Step 6: Final answer
    x = 15,064.93

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.