Home / 27,738.14-38,274.14-15,801.70

Finding the Fourth Proportional to 27,738.14, 38,274.14 and 15,801.70

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Solution

The fourth proportional to 27,738.14, 38,274.14 and 15,801.70 is: 21,803.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,738.14 : 38,274.14 = 15,801.70 : x
  2. Step 2: Convert to fraction form
    27,738.14/38,274.14 = 15,801.70/x
  3. Step 3: Cross multiply
    27,738.14x = 38,274.14 × 15,801.70
  4. Step 4: Simplify right side
    27,738.14x = 604,796,478.04
  5. Step 5: Solve for x
    x = 604,796,478.04/27,738.14
  6. Step 6: Final answer
    x = 21,803.79

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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.