Home / 18,769.98-25,843.56-15,931.44

Finding the Fourth Proportional to 18,769.98, 25,843.56 and 15,931.44

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Solution

The fourth proportional to 18,769.98, 25,843.56 and 15,931.44 is: 21,935.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,769.98 : 25,843.56 = 15,931.44 : x
  2. Step 2: Convert to fraction form
    18,769.98/25,843.56 = 15,931.44/x
  3. Step 3: Cross multiply
    18,769.98x = 25,843.56 × 15,931.44
  4. Step 4: Simplify right side
    18,769.98x = 411,725,125.53
  5. Step 5: Solve for x
    x = 411,725,125.53/18,769.98
  6. Step 6: Final answer
    x = 21,935.30

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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.