Home / 28,299.07-39,052.63-15,723.82

Finding the Fourth Proportional to 28,299.07, 39,052.63 and 15,723.82

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Solution

The fourth proportional to 28,299.07, 39,052.63 and 15,723.82 is: 21,698.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,299.07 : 39,052.63 = 15,723.82 : x
  2. Step 2: Convert to fraction form
    28,299.07/39,052.63 = 15,723.82/x
  3. Step 3: Cross multiply
    28,299.07x = 39,052.63 × 15,723.82
  4. Step 4: Simplify right side
    28,299.07x = 614,056,524.65
  5. Step 5: Solve for x
    x = 614,056,524.65/28,299.07
  6. Step 6: Final answer
    x = 21,698.82

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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.