Home / 21,403.23-32,102.40-8,254.50

Finding the Fourth Proportional to 21,403.23, 32,102.40 and 8,254.50

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Solution

The fourth proportional to 21,403.23, 32,102.40 and 8,254.50 is: 12,380.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,403.23 : 32,102.40 = 8,254.50 : x
  2. Step 2: Convert to fraction form
    21,403.23/32,102.40 = 8,254.50/x
  3. Step 3: Cross multiply
    21,403.23x = 32,102.40 × 8,254.50
  4. Step 4: Simplify right side
    21,403.23x = 264,989,260.80
  5. Step 5: Solve for x
    x = 264,989,260.80/21,403.23
  6. Step 6: Final answer
    x = 12,380.81

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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.