Home / 28,249.25-38,983.86-15,502.65

Finding the Fourth Proportional to 28,249.25, 38,983.86 and 15,502.65

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Solution

The fourth proportional to 28,249.25, 38,983.86 and 15,502.65 is: 21,393.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,249.25 : 38,983.86 = 15,502.65 : x
  2. Step 2: Convert to fraction form
    28,249.25/38,983.86 = 15,502.65/x
  3. Step 3: Cross multiply
    28,249.25x = 38,983.86 × 15,502.65
  4. Step 4: Simplify right side
    28,249.25x = 604,353,137.23
  5. Step 5: Solve for x
    x = 604,353,137.23/28,249.25
  6. Step 6: Final answer
    x = 21,393.60

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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.