Home / 21,520.61-32,278.33-5,726.80

Finding the Fourth Proportional to 21,520.61, 32,278.33 and 5,726.80

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Solution

The fourth proportional to 21,520.61, 32,278.33 and 5,726.80 is: 8,589.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,520.61 : 32,278.33 = 5,726.80 : x
  2. Step 2: Convert to fraction form
    21,520.61/32,278.33 = 5,726.80/x
  3. Step 3: Cross multiply
    21,520.61x = 32,278.33 × 5,726.80
  4. Step 4: Simplify right side
    21,520.61x = 184,851,540.24
  5. Step 5: Solve for x
    x = 184,851,540.24/21,520.61
  6. Step 6: Final answer
    x = 8,589.51

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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.