Home / 21,899.35-30,221.94-12,343.04

Finding the Fourth Proportional to 21,899.35, 30,221.94 and 12,343.04

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Solution

The fourth proportional to 21,899.35, 30,221.94 and 12,343.04 is: 17,033.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,899.35 : 30,221.94 = 12,343.04 : x
  2. Step 2: Convert to fraction form
    21,899.35/30,221.94 = 12,343.04/x
  3. Step 3: Cross multiply
    21,899.35x = 30,221.94 × 12,343.04
  4. Step 4: Simplify right side
    21,899.35x = 373,030,614.30
  5. Step 5: Solve for x
    x = 373,030,614.30/21,899.35
  6. Step 6: Final answer
    x = 17,033.87

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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.