Home / 19,725.12-27,219.61-10,770.87

Finding the Fourth Proportional to 19,725.12, 27,219.61 and 10,770.87

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Solution

The fourth proportional to 19,725.12, 27,219.61 and 10,770.87 is: 14,863.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,725.12 : 27,219.61 = 10,770.87 : x
  2. Step 2: Convert to fraction form
    19,725.12/27,219.61 = 10,770.87/x
  3. Step 3: Cross multiply
    19,725.12x = 27,219.61 × 10,770.87
  4. Step 4: Simplify right side
    19,725.12x = 293,178,996.30
  5. Step 5: Solve for x
    x = 293,178,996.30/19,725.12
  6. Step 6: Final answer
    x = 14,863.23

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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.