Home / 21,500.22-32,220.27-18,321.08

Finding the Fourth Proportional to 21,500.22, 32,220.27 and 18,321.08

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Solution

The fourth proportional to 21,500.22, 32,220.27 and 18,321.08 is: 27,456.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,500.22 : 32,220.27 = 18,321.08 : x
  2. Step 2: Convert to fraction form
    21,500.22/32,220.27 = 18,321.08/x
  3. Step 3: Cross multiply
    21,500.22x = 32,220.27 × 18,321.08
  4. Step 4: Simplify right side
    21,500.22x = 590,309,983.19
  5. Step 5: Solve for x
    x = 590,309,983.19/21,500.22
  6. Step 6: Final answer
    x = 27,456.00

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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.