Home / 27,653.40-38,161.73-15,078.15

Finding the Fourth Proportional to 27,653.40, 38,161.73 and 15,078.15

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Solution

The fourth proportional to 27,653.40, 38,161.73 and 15,078.15 is: 20,807.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,653.40 : 38,161.73 = 15,078.15 : x
  2. Step 2: Convert to fraction form
    27,653.40/38,161.73 = 15,078.15/x
  3. Step 3: Cross multiply
    27,653.40x = 38,161.73 × 15,078.15
  4. Step 4: Simplify right side
    27,653.40x = 575,408,203.80
  5. Step 5: Solve for x
    x = 575,408,203.80/27,653.40
  6. Step 6: Final answer
    x = 20,807.87

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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.