Home / 21,241.98-29,316.51-12,170.70

Finding the Fourth Proportional to 21,241.98, 29,316.51 and 12,170.70

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Solution

The fourth proportional to 21,241.98, 29,316.51 and 12,170.70 is: 16,797.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,241.98 : 29,316.51 = 12,170.70 : x
  2. Step 2: Convert to fraction form
    21,241.98/29,316.51 = 12,170.70/x
  3. Step 3: Cross multiply
    21,241.98x = 29,316.51 × 12,170.70
  4. Step 4: Simplify right side
    21,241.98x = 356,802,448.26
  5. Step 5: Solve for x
    x = 356,802,448.26/21,241.98
  6. Step 6: Final answer
    x = 16,797.04

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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.