Home / 19,725.38-27,220.88-10,772.89

Finding the Fourth Proportional to 19,725.38, 27,220.88 and 10,772.89

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Solution

The fourth proportional to 19,725.38, 27,220.88 and 10,772.89 is: 14,866.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,725.38 : 27,220.88 = 10,772.89 : x
  2. Step 2: Convert to fraction form
    19,725.38/27,220.88 = 10,772.89/x
  3. Step 3: Cross multiply
    19,725.38x = 27,220.88 × 10,772.89
  4. Step 4: Simplify right side
    19,725.38x = 293,247,409.84
  5. Step 5: Solve for x
    x = 293,247,409.84/19,725.38
  6. Step 6: Final answer
    x = 14,866.50

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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.