Home / 27,542.43-38,005.47-15,603.21

Finding the Fourth Proportional to 27,542.43, 38,005.47 and 15,603.21

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Solution

The fourth proportional to 27,542.43, 38,005.47 and 15,603.21 is: 21,530.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,542.43 : 38,005.47 = 15,603.21 : x
  2. Step 2: Convert to fraction form
    27,542.43/38,005.47 = 15,603.21/x
  3. Step 3: Cross multiply
    27,542.43x = 38,005.47 × 15,603.21
  4. Step 4: Simplify right side
    27,542.43x = 593,007,329.56
  5. Step 5: Solve for x
    x = 593,007,329.56/27,542.43
  6. Step 6: Final answer
    x = 21,530.68

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Half scale
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Similar ratio
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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.