Home / 21,578.76-29,795.58-16,876.44

Finding the Fourth Proportional to 21,578.76, 29,795.58 and 16,876.44

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Solution

The fourth proportional to 21,578.76, 29,795.58 and 16,876.44 is: 23,302.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,578.76 : 29,795.58 = 16,876.44 : x
  2. Step 2: Convert to fraction form
    21,578.76/29,795.58 = 16,876.44/x
  3. Step 3: Cross multiply
    21,578.76x = 29,795.58 × 16,876.44
  4. Step 4: Simplify right side
    21,578.76x = 502,843,318.14
  5. Step 5: Solve for x
    x = 502,843,318.14/21,578.76
  6. Step 6: Final answer
    x = 23,302.70

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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.