Home / 27,969.72-38,596.86-15,394.20

Finding the Fourth Proportional to 27,969.72, 38,596.86 and 15,394.20

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Solution

The fourth proportional to 27,969.72, 38,596.86 and 15,394.20 is: 21,243.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,969.72 : 38,596.86 = 15,394.20 : x
  2. Step 2: Convert to fraction form
    27,969.72/38,596.86 = 15,394.20/x
  3. Step 3: Cross multiply
    27,969.72x = 38,596.86 × 15,394.20
  4. Step 4: Simplify right side
    27,969.72x = 594,167,782.21
  5. Step 5: Solve for x
    x = 594,167,782.21/27,969.72
  6. Step 6: Final answer
    x = 21,243.25

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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.