Home / 39,611.62-54,660.99-21,703.74

Finding the Fourth Proportional to 39,611.62, 54,660.99 and 21,703.74

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Solution

The fourth proportional to 39,611.62, 54,660.99 and 21,703.74 is: 29,949.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,611.62 : 54,660.99 = 21,703.74 : x
  2. Step 2: Convert to fraction form
    39,611.62/54,660.99 = 21,703.74/x
  3. Step 3: Cross multiply
    39,611.62x = 54,660.99 × 21,703.74
  4. Step 4: Simplify right side
    39,611.62x = 1,186,347,915.10
  5. Step 5: Solve for x
    x = 1,186,347,915.10/39,611.62
  6. Step 6: Final answer
    x = 29,949.49

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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.