Home / 19,726.40-27,221.33-11,230.59

Finding the Fourth Proportional to 19,726.40, 27,221.33 and 11,230.59

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Solution

The fourth proportional to 19,726.40, 27,221.33 and 11,230.59 is: 15,497.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,726.40 : 27,221.33 = 11,230.59 : x
  2. Step 2: Convert to fraction form
    19,726.40/27,221.33 = 11,230.59/x
  3. Step 3: Cross multiply
    19,726.40x = 27,221.33 × 11,230.59
  4. Step 4: Simplify right side
    19,726.40x = 305,711,726.64
  5. Step 5: Solve for x
    x = 305,711,726.64/19,726.40
  6. Step 6: Final answer
    x = 15,497.59

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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.