Home / 27,783.05-38,340.21-15,846.58

Finding the Fourth Proportional to 27,783.05, 38,340.21 and 15,846.58

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Solution

The fourth proportional to 27,783.05, 38,340.21 and 15,846.58 is: 21,868.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,783.05 : 38,340.21 = 15,846.58 : x
  2. Step 2: Convert to fraction form
    27,783.05/38,340.21 = 15,846.58/x
  3. Step 3: Cross multiply
    27,783.05x = 38,340.21 × 15,846.58
  4. Step 4: Simplify right side
    27,783.05x = 607,561,223.19
  5. Step 5: Solve for x
    x = 607,561,223.19/27,783.05
  6. Step 6: Final answer
    x = 21,868.06

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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.