Home / 21,410.53-32,118.66-20,230.09

Finding the Fourth Proportional to 21,410.53, 32,118.66 and 20,230.09

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Solution

The fourth proportional to 21,410.53, 32,118.66 and 20,230.09 is: 30,347.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,410.53 : 32,118.66 = 20,230.09 : x
  2. Step 2: Convert to fraction form
    21,410.53/32,118.66 = 20,230.09/x
  3. Step 3: Cross multiply
    21,410.53x = 32,118.66 × 20,230.09
  4. Step 4: Simplify right side
    21,410.53x = 649,763,302.18
  5. Step 5: Solve for x
    x = 649,763,302.18/21,410.53
  6. Step 6: Final answer
    x = 30,347.84

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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.