Home / 28,614.23-39,486.93-15,867.47

Finding the Fourth Proportional to 28,614.23, 39,486.93 and 15,867.47

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Solution

The fourth proportional to 28,614.23, 39,486.93 and 15,867.47 is: 21,896.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,614.23 : 39,486.93 = 15,867.47 : x
  2. Step 2: Convert to fraction form
    28,614.23/39,486.93 = 15,867.47/x
  3. Step 3: Cross multiply
    28,614.23x = 39,486.93 × 15,867.47
  4. Step 4: Simplify right side
    28,614.23x = 626,557,479.73
  5. Step 5: Solve for x
    x = 626,557,479.73/28,614.23
  6. Step 6: Final answer
    x = 21,896.71

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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.