Home / 28,250.39-38,986.67-15,504.02

Finding the Fourth Proportional to 28,250.39, 38,986.67 and 15,504.02

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Solution

The fourth proportional to 28,250.39, 38,986.67 and 15,504.02 is: 21,396.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,250.39 : 38,986.67 = 15,504.02 : x
  2. Step 2: Convert to fraction form
    28,250.39/38,986.67 = 15,504.02/x
  3. Step 3: Cross multiply
    28,250.39x = 38,986.67 × 15,504.02
  4. Step 4: Simplify right side
    28,250.39x = 604,450,033.89
  5. Step 5: Solve for x
    x = 604,450,033.89/28,250.39
  6. Step 6: Final answer
    x = 21,396.17

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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.