Home / 27,794.40-38,354.76-15,216.72

Finding the Fourth Proportional to 27,794.40, 38,354.76 and 15,216.72

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Solution

The fourth proportional to 27,794.40, 38,354.76 and 15,216.72 is: 20,998.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,794.40 : 38,354.76 = 15,216.72 : x
  2. Step 2: Convert to fraction form
    27,794.40/38,354.76 = 15,216.72/x
  3. Step 3: Cross multiply
    27,794.40x = 38,354.76 × 15,216.72
  4. Step 4: Simplify right side
    27,794.40x = 583,633,643.59
  5. Step 5: Solve for x
    x = 583,633,643.59/27,794.40
  6. Step 6: Final answer
    x = 20,998.25

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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.