Home / 21,456.40-32,184.60-16,272.40

Finding the Fourth Proportional to 21,456.40, 32,184.60 and 16,272.40

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Solution

The fourth proportional to 21,456.40, 32,184.60 and 16,272.40 is: 24,408.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,456.40 : 32,184.60 = 16,272.40 : x
  2. Step 2: Convert to fraction form
    21,456.40/32,184.60 = 16,272.40/x
  3. Step 3: Cross multiply
    21,456.40x = 32,184.60 × 16,272.40
  4. Step 4: Simplify right side
    21,456.40x = 523,720,685.04
  5. Step 5: Solve for x
    x = 523,720,685.04/21,456.40
  6. Step 6: Final answer
    x = 24,408.60

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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.