Home / 28,054.97-38,716.67-15,480.53

Finding the Fourth Proportional to 28,054.97, 38,716.67 and 15,480.53

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Solution

The fourth proportional to 28,054.97, 38,716.67 and 15,480.53 is: 21,363.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,054.97 : 38,716.67 = 15,480.53 : x
  2. Step 2: Convert to fraction form
    28,054.97/38,716.67 = 15,480.53/x
  3. Step 3: Cross multiply
    28,054.97x = 38,716.67 × 15,480.53
  4. Step 4: Simplify right side
    28,054.97x = 599,354,503.69
  5. Step 5: Solve for x
    x = 599,354,503.69/28,054.97
  6. Step 6: Final answer
    x = 21,363.58

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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.