Home / 29,648.25-40,924.31-21,289.05

Finding the Fourth Proportional to 29,648.25, 40,924.31 and 21,289.05

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Solution

The fourth proportional to 29,648.25, 40,924.31 and 21,289.05 is: 29,385.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,648.25 : 40,924.31 = 21,289.05 : x
  2. Step 2: Convert to fraction form
    29,648.25/40,924.31 = 21,289.05/x
  3. Step 3: Cross multiply
    29,648.25x = 40,924.31 × 21,289.05
  4. Step 4: Simplify right side
    29,648.25x = 871,239,575.36
  5. Step 5: Solve for x
    x = 871,239,575.36/29,648.25
  6. Step 6: Final answer
    x = 29,385.87

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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.