Home / 21,328.20-32,021.10-13,552.20

Finding the Fourth Proportional to 21,328.20, 32,021.10 and 13,552.20

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Solution

The fourth proportional to 21,328.20, 32,021.10 and 13,552.20 is: 20,346.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,328.20 : 32,021.10 = 13,552.20 : x
  2. Step 2: Convert to fraction form
    21,328.20/32,021.10 = 13,552.20/x
  3. Step 3: Cross multiply
    21,328.20x = 32,021.10 × 13,552.20
  4. Step 4: Simplify right side
    21,328.20x = 433,956,351.42
  5. Step 5: Solve for x
    x = 433,956,351.42/21,328.20
  6. Step 6: Final answer
    x = 20,346.60

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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.