Home / 21,378.15-32,067.21-5,795.78

Finding the Fourth Proportional to 21,378.15, 32,067.21 and 5,795.78

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Solution

The fourth proportional to 21,378.15, 32,067.21 and 5,795.78 is: 8,693.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,378.15 : 32,067.21 = 5,795.78 : x
  2. Step 2: Convert to fraction form
    21,378.15/32,067.21 = 5,795.78/x
  3. Step 3: Cross multiply
    21,378.15x = 32,067.21 × 5,795.78
  4. Step 4: Simplify right side
    21,378.15x = 185,854,334.04
  5. Step 5: Solve for x
    x = 185,854,334.04/21,378.15
  6. Step 6: Final answer
    x = 8,693.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.