Home / 15,445.29-21,176.96-15,297.66

Finding the Fourth Proportional to 15,445.29, 21,176.96 and 15,297.66

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Solution

The fourth proportional to 15,445.29, 21,176.96 and 15,297.66 is: 20,974.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,445.29 : 21,176.96 = 15,297.66 : x
  2. Step 2: Convert to fraction form
    15,445.29/21,176.96 = 15,297.66/x
  3. Step 3: Cross multiply
    15,445.29x = 21,176.96 × 15,297.66
  4. Step 4: Simplify right side
    15,445.29x = 323,957,857.43
  5. Step 5: Solve for x
    x = 323,957,857.43/15,445.29
  6. Step 6: Final answer
    x = 20,974.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.