Home / 21,403.60-32,102.97-8,254.87

Finding the Fourth Proportional to 21,403.60, 32,102.97 and 8,254.87

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Solution

The fourth proportional to 21,403.60, 32,102.97 and 8,254.87 is: 12,381.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,403.60 : 32,102.97 = 8,254.87 : x
  2. Step 2: Convert to fraction form
    21,403.60/32,102.97 = 8,254.87/x
  3. Step 3: Cross multiply
    21,403.60x = 32,102.97 × 8,254.87
  4. Step 4: Simplify right side
    21,403.60x = 265,005,843.96
  5. Step 5: Solve for x
    x = 265,005,843.96/21,403.60
  6. Step 6: Final answer
    x = 12,381.37

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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.