Home / 21,647.04-29,872.88-11,711.04

Finding the Fourth Proportional to 21,647.04, 29,872.88 and 11,711.04

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Solution

The fourth proportional to 21,647.04, 29,872.88 and 11,711.04 is: 16,161.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,647.04 : 29,872.88 = 11,711.04 : x
  2. Step 2: Convert to fraction form
    21,647.04/29,872.88 = 11,711.04/x
  3. Step 3: Cross multiply
    21,647.04x = 29,872.88 × 11,711.04
  4. Step 4: Simplify right side
    21,647.04x = 349,842,492.60
  5. Step 5: Solve for x
    x = 349,842,492.60/21,647.04
  6. Step 6: Final answer
    x = 16,161.22

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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.