Home / 19,724.70-27,220.69-10,772.65

Finding the Fourth Proportional to 19,724.70, 27,220.69 and 10,772.65

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Solution

The fourth proportional to 19,724.70, 27,220.69 and 10,772.65 is: 14,866.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,724.70 : 27,220.69 = 10,772.65 : x
  2. Step 2: Convert to fraction form
    19,724.70/27,220.69 = 10,772.65/x
  3. Step 3: Cross multiply
    19,724.70x = 27,220.69 × 10,772.65
  4. Step 4: Simplify right side
    19,724.70x = 293,238,966.13
  5. Step 5: Solve for x
    x = 293,238,966.13/19,724.70
  6. Step 6: Final answer
    x = 14,866.59

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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.