Home / 27,726.29-38,263.64-15,790.73

Finding the Fourth Proportional to 27,726.29, 38,263.64 and 15,790.73

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Solution

The fourth proportional to 27,726.29, 38,263.64 and 15,790.73 is: 21,791.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,726.29 : 38,263.64 = 15,790.73 : x
  2. Step 2: Convert to fraction form
    27,726.29/38,263.64 = 15,790.73/x
  3. Step 3: Cross multiply
    27,726.29x = 38,263.64 × 15,790.73
  4. Step 4: Simplify right side
    27,726.29x = 604,210,537.79
  5. Step 5: Solve for x
    x = 604,210,537.79/27,726.29
  6. Step 6: Final answer
    x = 21,791.98

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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.