Home / 20,727.41-28,607.49-12,229.02

Finding the Fourth Proportional to 20,727.41, 28,607.49 and 12,229.02

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Solution

The fourth proportional to 20,727.41, 28,607.49 and 12,229.02 is: 16,878.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727.41 : 28,607.49 = 12,229.02 : x
  2. Step 2: Convert to fraction form
    20,727.41/28,607.49 = 12,229.02/x
  3. Step 3: Cross multiply
    20,727.41x = 28,607.49 × 12,229.02
  4. Step 4: Simplify right side
    20,727.41x = 349,841,567.36
  5. Step 5: Solve for x
    x = 349,841,567.36/20,727.41
  6. Step 6: Final answer
    x = 16,878.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.