Home / 27,825.32-38,399.01-15,078.66

Finding the Fourth Proportional to 27,825.32, 38,399.01 and 15,078.66

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Solution

The fourth proportional to 27,825.32, 38,399.01 and 15,078.66 is: 20,808.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,825.32 : 38,399.01 = 15,078.66 : x
  2. Step 2: Convert to fraction form
    27,825.32/38,399.01 = 15,078.66/x
  3. Step 3: Cross multiply
    27,825.32x = 38,399.01 × 15,078.66
  4. Step 4: Simplify right side
    27,825.32x = 579,005,500.40
  5. Step 5: Solve for x
    x = 579,005,500.40/27,825.32
  6. Step 6: Final answer
    x = 20,808.58

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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.