Home / 19,725.31-27,219.72-10,770.99

Finding the Fourth Proportional to 19,725.31, 27,219.72 and 10,770.99

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Solution

The fourth proportional to 19,725.31, 27,219.72 and 10,770.99 is: 14,863.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,725.31 : 27,219.72 = 10,770.99 : x
  2. Step 2: Convert to fraction form
    19,725.31/27,219.72 = 10,770.99/x
  3. Step 3: Cross multiply
    19,725.31x = 27,219.72 × 10,770.99
  4. Step 4: Simplify right side
    19,725.31x = 293,183,331.92
  5. Step 5: Solve for x
    x = 293,183,331.92/19,725.31
  6. Step 6: Final answer
    x = 14,863.31

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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.