Home / 20,853.61-31,249.44-10,962.90

Finding the Fourth Proportional to 20,853.61, 31,249.44 and 10,962.90

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Solution

The fourth proportional to 20,853.61, 31,249.44 and 10,962.90 is: 16,428.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,853.61 : 31,249.44 = 10,962.90 : x
  2. Step 2: Convert to fraction form
    20,853.61/31,249.44 = 10,962.90/x
  3. Step 3: Cross multiply
    20,853.61x = 31,249.44 × 10,962.90
  4. Step 4: Simplify right side
    20,853.61x = 342,584,485.78
  5. Step 5: Solve for x
    x = 342,584,485.78/20,853.61
  6. Step 6: Final answer
    x = 16,428.07

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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.