Home / 28,716.62-39,629.40-17,385.98

Finding the Fourth Proportional to 28,716.62, 39,629.40 and 17,385.98

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Solution

The fourth proportional to 28,716.62, 39,629.40 and 17,385.98 is: 23,992.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,716.62 : 39,629.40 = 17,385.98 : x
  2. Step 2: Convert to fraction form
    28,716.62/39,629.40 = 17,385.98/x
  3. Step 3: Cross multiply
    28,716.62x = 39,629.40 × 17,385.98
  4. Step 4: Simplify right side
    28,716.62x = 688,995,955.81
  5. Step 5: Solve for x
    x = 688,995,955.81/28,716.62
  6. Step 6: Final answer
    x = 23,992.93

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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.