Home / 19,881.08-27,436.20-10,928.96

Finding the Fourth Proportional to 19,881.08, 27,436.20 and 10,928.96

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Solution

The fourth proportional to 19,881.08, 27,436.20 and 10,928.96 is: 15,082.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,881.08 : 27,436.20 = 10,928.96 : x
  2. Step 2: Convert to fraction form
    19,881.08/27,436.20 = 10,928.96/x
  3. Step 3: Cross multiply
    19,881.08x = 27,436.20 × 10,928.96
  4. Step 4: Simplify right side
    19,881.08x = 299,849,132.35
  5. Step 5: Solve for x
    x = 299,849,132.35/19,881.08
  6. Step 6: Final answer
    x = 15,082.13

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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.