Home / 20,902.07-28,868.61-14,175.99

Finding the Fourth Proportional to 20,902.07, 28,868.61 and 14,175.99

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Solution

The fourth proportional to 20,902.07, 28,868.61 and 14,175.99 is: 19,578.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,902.07 : 28,868.61 = 14,175.99 : x
  2. Step 2: Convert to fraction form
    20,902.07/28,868.61 = 14,175.99/x
  3. Step 3: Cross multiply
    20,902.07x = 28,868.61 × 14,175.99
  4. Step 4: Simplify right side
    20,902.07x = 409,241,126.67
  5. Step 5: Solve for x
    x = 409,241,126.67/20,902.07
  6. Step 6: Final answer
    x = 19,578.98

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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.