Home / 21,165.49-29,202.46-16,675.30

Finding the Fourth Proportional to 21,165.49, 29,202.46 and 16,675.30

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Solution

The fourth proportional to 21,165.49, 29,202.46 and 16,675.30 is: 23,007.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,165.49 : 29,202.46 = 16,675.30 : x
  2. Step 2: Convert to fraction form
    21,165.49/29,202.46 = 16,675.30/x
  3. Step 3: Cross multiply
    21,165.49x = 29,202.46 × 16,675.30
  4. Step 4: Simplify right side
    21,165.49x = 486,959,781.24
  5. Step 5: Solve for x
    x = 486,959,781.24/21,165.49
  6. Step 6: Final answer
    x = 23,007.25

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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.