Home / 28,249.40-38,982.86-15,502.27

Finding the Fourth Proportional to 28,249.40, 38,982.86 and 15,502.27

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Solution

The fourth proportional to 28,249.40, 38,982.86 and 15,502.27 is: 21,392.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,249.40 : 38,982.86 = 15,502.27 : x
  2. Step 2: Convert to fraction form
    28,249.40/38,982.86 = 15,502.27/x
  3. Step 3: Cross multiply
    28,249.40x = 38,982.86 × 15,502.27
  4. Step 4: Simplify right side
    28,249.40x = 604,322,821.09
  5. Step 5: Solve for x
    x = 604,322,821.09/28,249.40
  6. Step 6: Final answer
    x = 21,392.41

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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.