Home / 29,313.42-40,452.41-15,885

Finding the Fourth Proportional to 29,313.42, 40,452.41 and 15,885

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Solution

The fourth proportional to 29,313.42, 40,452.41 and 15,885 is: 21,921.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,313.42 : 40,452.41 = 15,885 : x
  2. Step 2: Convert to fraction form
    29,313.42/40,452.41 = 15,885/x
  3. Step 3: Cross multiply
    29,313.42x = 40,452.41 × 15,885
  4. Step 4: Simplify right side
    29,313.42x = 642,586,572.56
  5. Step 5: Solve for x
    x = 642,586,572.56/29,313.42
  6. Step 6: Final answer
    x = 21,921.24

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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.