Home / 27,783.17-38,340.38-15,846.71

Finding the Fourth Proportional to 27,783.17, 38,340.38 and 15,846.71

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Solution

The fourth proportional to 27,783.17, 38,340.38 and 15,846.71 is: 21,868.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,783.17 : 38,340.38 = 15,846.71 : x
  2. Step 2: Convert to fraction form
    27,783.17/38,340.38 = 15,846.71/x
  3. Step 3: Cross multiply
    27,783.17x = 38,340.38 × 15,846.71
  4. Step 4: Simplify right side
    27,783.17x = 607,568,883.15
  5. Step 5: Solve for x
    x = 607,568,883.15/27,783.17
  6. Step 6: Final answer
    x = 21,868.23

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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.