Home / 27,726.51-38,262.53-15,789.84

Finding the Fourth Proportional to 27,726.51, 38,262.53 and 15,789.84

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Solution

The fourth proportional to 27,726.51, 38,262.53 and 15,789.84 is: 21,789.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,726.51 : 38,262.53 = 15,789.84 : x
  2. Step 2: Convert to fraction form
    27,726.51/38,262.53 = 15,789.84/x
  3. Step 3: Cross multiply
    27,726.51x = 38,262.53 × 15,789.84
  4. Step 4: Simplify right side
    27,726.51x = 604,159,147.75
  5. Step 5: Solve for x
    x = 604,159,147.75/27,726.51
  6. Step 6: Final answer
    x = 21,789.95

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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.