Home / 21,493.21-32,201.68-18,341.20

Finding the Fourth Proportional to 21,493.21, 32,201.68 and 18,341.20

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Solution

The fourth proportional to 21,493.21, 32,201.68 and 18,341.20 is: 27,479.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,493.21 : 32,201.68 = 18,341.20 : x
  2. Step 2: Convert to fraction form
    21,493.21/32,201.68 = 18,341.20/x
  3. Step 3: Cross multiply
    21,493.21x = 32,201.68 × 18,341.20
  4. Step 4: Simplify right side
    21,493.21x = 590,617,453.22
  5. Step 5: Solve for x
    x = 590,617,453.22/21,493.21
  6. Step 6: Final answer
    x = 27,479.26

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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.