Home / 27,738.36-38,274.65-15,800.18

Finding the Fourth Proportional to 27,738.36, 38,274.65 and 15,800.18

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Solution

The fourth proportional to 27,738.36, 38,274.65 and 15,800.18 is: 21,801.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,738.36 : 38,274.65 = 15,800.18 : x
  2. Step 2: Convert to fraction form
    27,738.36/38,274.65 = 15,800.18/x
  3. Step 3: Cross multiply
    27,738.36x = 38,274.65 × 15,800.18
  4. Step 4: Simplify right side
    27,738.36x = 604,746,359.44
  5. Step 5: Solve for x
    x = 604,746,359.44/27,738.36
  6. Step 6: Final answer
    x = 21,801.81

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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.