Home / 19,988.70-27,584.40-11,036.82

Finding the Fourth Proportional to 19,988.70, 27,584.40 and 11,036.82

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Solution

The fourth proportional to 19,988.70, 27,584.40 and 11,036.82 is: 15,230.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,988.70 : 27,584.40 = 11,036.82 : x
  2. Step 2: Convert to fraction form
    19,988.70/27,584.40 = 11,036.82/x
  3. Step 3: Cross multiply
    19,988.70x = 27,584.40 × 11,036.82
  4. Step 4: Simplify right side
    19,988.70x = 304,444,057.61
  5. Step 5: Solve for x
    x = 304,444,057.61/19,988.70
  6. Step 6: Final answer
    x = 15,230.81

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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.