Home / 15,445.17-21,176.78-15,297.54

Finding the Fourth Proportional to 15,445.17, 21,176.78 and 15,297.54

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Solution

The fourth proportional to 15,445.17, 21,176.78 and 15,297.54 is: 20,974.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,445.17 : 21,176.78 = 15,297.54 : x
  2. Step 2: Convert to fraction form
    15,445.17/21,176.78 = 15,297.54/x
  3. Step 3: Cross multiply
    15,445.17x = 21,176.78 × 15,297.54
  4. Step 4: Simplify right side
    15,445.17x = 323,952,639.12
  5. Step 5: Solve for x
    x = 323,952,639.12/15,445.17
  6. Step 6: Final answer
    x = 20,974.37

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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.