Home / 21,548.32-29,737.04-11,988.96

Finding the Fourth Proportional to 21,548.32, 29,737.04 and 11,988.96

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Solution

The fourth proportional to 21,548.32, 29,737.04 and 11,988.96 is: 16,544.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,548.32 : 29,737.04 = 11,988.96 : x
  2. Step 2: Convert to fraction form
    21,548.32/29,737.04 = 11,988.96/x
  3. Step 3: Cross multiply
    21,548.32x = 29,737.04 × 11,988.96
  4. Step 4: Simplify right side
    21,548.32x = 356,516,183.08
  5. Step 5: Solve for x
    x = 356,516,183.08/21,548.32
  6. Step 6: Final answer
    x = 16,544.96

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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.