Home / 27,712.77-38,275.46-20,192.73

Finding the Fourth Proportional to 27,712.77, 38,275.46 and 20,192.73

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Solution

The fourth proportional to 27,712.77, 38,275.46 and 20,192.73 is: 27,889.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,712.77 : 38,275.46 = 20,192.73 : x
  2. Step 2: Convert to fraction form
    27,712.77/38,275.46 = 20,192.73/x
  3. Step 3: Cross multiply
    27,712.77x = 38,275.46 × 20,192.73
  4. Step 4: Simplify right side
    27,712.77x = 772,885,928.44
  5. Step 5: Solve for x
    x = 772,885,928.44/27,712.77
  6. Step 6: Final answer
    x = 27,889.16

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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.