Home / 21,568.92-29,770.74-13,192.44

Finding the Fourth Proportional to 21,568.92, 29,770.74 and 13,192.44

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Solution

The fourth proportional to 21,568.92, 29,770.74 and 13,192.44 is: 18,209.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,568.92 : 29,770.74 = 13,192.44 : x
  2. Step 2: Convert to fraction form
    21,568.92/29,770.74 = 13,192.44/x
  3. Step 3: Cross multiply
    21,568.92x = 29,770.74 × 13,192.44
  4. Step 4: Simplify right side
    21,568.92x = 392,748,701.21
  5. Step 5: Solve for x
    x = 392,748,701.21/21,568.92
  6. Step 6: Final answer
    x = 18,209.01

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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.