Home / 19,881.23-27,436.14-10,929.65

Finding the Fourth Proportional to 19,881.23, 27,436.14 and 10,929.65

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Solution

The fourth proportional to 19,881.23, 27,436.14 and 10,929.65 is: 15,082.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,881.23 : 27,436.14 = 10,929.65 : x
  2. Step 2: Convert to fraction form
    19,881.23/27,436.14 = 10,929.65/x
  3. Step 3: Cross multiply
    19,881.23x = 27,436.14 × 10,929.65
  4. Step 4: Simplify right side
    19,881.23x = 299,867,270.37
  5. Step 5: Solve for x
    x = 299,867,270.37/19,881.23
  6. Step 6: Final answer
    x = 15,082.94

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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.