Home / 21,622.68-32,492.34-18,914.04

Finding the Fourth Proportional to 21,622.68, 32,492.34 and 18,914.04

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Solution

The fourth proportional to 21,622.68, 32,492.34 and 18,914.04 is: 28,422.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,622.68 : 32,492.34 = 18,914.04 : x
  2. Step 2: Convert to fraction form
    21,622.68/32,492.34 = 18,914.04/x
  3. Step 3: Cross multiply
    21,622.68x = 32,492.34 × 18,914.04
  4. Step 4: Simplify right side
    21,622.68x = 614,561,418.45
  5. Step 5: Solve for x
    x = 614,561,418.45/21,622.68
  6. Step 6: Final answer
    x = 28,422.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.