Home / 21,025.48-31,531.20-16,350.70

Finding the Fourth Proportional to 21,025.48, 31,531.20 and 16,350.70

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Solution

The fourth proportional to 21,025.48, 31,531.20 and 16,350.70 is: 24,520.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,025.48 : 31,531.20 = 16,350.70 : x
  2. Step 2: Convert to fraction form
    21,025.48/31,531.20 = 16,350.70/x
  3. Step 3: Cross multiply
    21,025.48x = 31,531.20 × 16,350.70
  4. Step 4: Simplify right side
    21,025.48x = 515,557,191.84
  5. Step 5: Solve for x
    x = 515,557,191.84/21,025.48
  6. Step 6: Final answer
    x = 24,520.59

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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.