Home / 21,569.24-29,771.10-16,788.08

Finding the Fourth Proportional to 21,569.24, 29,771.10 and 16,788.08

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Solution

The fourth proportional to 21,569.24, 29,771.10 and 16,788.08 is: 23,171.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,569.24 : 29,771.10 = 16,788.08 : x
  2. Step 2: Convert to fraction form
    21,569.24/29,771.10 = 16,788.08/x
  3. Step 3: Cross multiply
    21,569.24x = 29,771.10 × 16,788.08
  4. Step 4: Simplify right side
    21,569.24x = 499,799,524.55
  5. Step 5: Solve for x
    x = 499,799,524.55/21,569.24
  6. Step 6: Final answer
    x = 23,171.87

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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.