Home / 21,621.22-29,833.87-12,060.64

Finding the Fourth Proportional to 21,621.22, 29,833.87 and 12,060.64

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Solution

The fourth proportional to 21,621.22, 29,833.87 and 12,060.64 is: 16,641.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,621.22 : 29,833.87 = 12,060.64 : x
  2. Step 2: Convert to fraction form
    21,621.22/29,833.87 = 12,060.64/x
  3. Step 3: Cross multiply
    21,621.22x = 29,833.87 × 12,060.64
  4. Step 4: Simplify right side
    21,621.22x = 359,815,688.38
  5. Step 5: Solve for x
    x = 359,815,688.38/21,621.22
  6. Step 6: Final answer
    x = 16,641.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.