Home / 29,452.45-40,631.21-19,889.28

Finding the Fourth Proportional to 29,452.45, 40,631.21 and 19,889.28

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Solution

The fourth proportional to 29,452.45, 40,631.21 and 19,889.28 is: 27,438.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,452.45 : 40,631.21 = 19,889.28 : x
  2. Step 2: Convert to fraction form
    29,452.45/40,631.21 = 19,889.28/x
  3. Step 3: Cross multiply
    29,452.45x = 40,631.21 × 19,889.28
  4. Step 4: Simplify right side
    29,452.45x = 808,125,512.43
  5. Step 5: Solve for x
    x = 808,125,512.43/29,452.45
  6. Step 6: Final answer
    x = 27,438.31

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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.