Home / 28,224.97-38,950.91-15,479.32

Finding the Fourth Proportional to 28,224.97, 38,950.91 and 15,479.32

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Solution

The fourth proportional to 28,224.97, 38,950.91 and 15,479.32 is: 21,361.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,224.97 : 38,950.91 = 15,479.32 : x
  2. Step 2: Convert to fraction form
    28,224.97/38,950.91 = 15,479.32/x
  3. Step 3: Cross multiply
    28,224.97x = 38,950.91 × 15,479.32
  4. Step 4: Simplify right side
    28,224.97x = 602,933,600.18
  5. Step 5: Solve for x
    x = 602,933,600.18/28,224.97
  6. Step 6: Final answer
    x = 21,361.71

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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.