Home / 21,504.20-32,213.10-12,259.40

Finding the Fourth Proportional to 21,504.20, 32,213.10 and 12,259.40

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Solution

The fourth proportional to 21,504.20, 32,213.10 and 12,259.40 is: 18,364.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,504.20 : 32,213.10 = 12,259.40 : x
  2. Step 2: Convert to fraction form
    21,504.20/32,213.10 = 12,259.40/x
  3. Step 3: Cross multiply
    21,504.20x = 32,213.10 × 12,259.40
  4. Step 4: Simplify right side
    21,504.20x = 394,913,278.14
  5. Step 5: Solve for x
    x = 394,913,278.14/21,504.20
  6. Step 6: Final answer
    x = 18,364.47

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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.