Home / 27,727.61-38,264.09-15,790.95

Finding the Fourth Proportional to 27,727.61, 38,264.09 and 15,790.95

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Solution

The fourth proportional to 27,727.61, 38,264.09 and 15,790.95 is: 21,791.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,727.61 : 38,264.09 = 15,790.95 : x
  2. Step 2: Convert to fraction form
    27,727.61/38,264.09 = 15,790.95/x
  3. Step 3: Cross multiply
    27,727.61x = 38,264.09 × 15,790.95
  4. Step 4: Simplify right side
    27,727.61x = 604,226,253.03
  5. Step 5: Solve for x
    x = 604,226,253.03/27,727.61
  6. Step 6: Final answer
    x = 21,791.51

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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.