Home / 28,398.57-39,196.71-17,651.57

Finding the Fourth Proportional to 28,398.57, 39,196.71 and 17,651.57

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Solution

The fourth proportional to 28,398.57, 39,196.71 and 17,651.57 is: 24,363.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,398.57 : 39,196.71 = 17,651.57 : x
  2. Step 2: Convert to fraction form
    28,398.57/39,196.71 = 17,651.57/x
  3. Step 3: Cross multiply
    28,398.57x = 39,196.71 × 17,651.57
  4. Step 4: Simplify right side
    28,398.57x = 691,883,274.35
  5. Step 5: Solve for x
    x = 691,883,274.35/28,398.57
  6. Step 6: Final answer
    x = 24,363.31

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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.