Home / 19,881.09-27,436.25-10,928.97

Finding the Fourth Proportional to 19,881.09, 27,436.25 and 10,928.97

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Solution

The fourth proportional to 19,881.09, 27,436.25 and 10,928.97 is: 15,082.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,881.09 : 27,436.25 = 10,928.97 : x
  2. Step 2: Convert to fraction form
    19,881.09/27,436.25 = 10,928.97/x
  3. Step 3: Cross multiply
    19,881.09x = 27,436.25 × 10,928.97
  4. Step 4: Simplify right side
    19,881.09x = 299,849,898.52
  5. Step 5: Solve for x
    x = 299,849,898.52/19,881.09
  6. Step 6: Final answer
    x = 15,082.17

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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.