Home / 20,845.92-31,284.63-16,154.49

Finding the Fourth Proportional to 20,845.92, 31,284.63 and 16,154.49

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Solution

The fourth proportional to 20,845.92, 31,284.63 and 16,154.49 is: 24,243.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,845.92 : 31,284.63 = 16,154.49 : x
  2. Step 2: Convert to fraction form
    20,845.92/31,284.63 = 16,154.49/x
  3. Step 3: Cross multiply
    20,845.92x = 31,284.63 × 16,154.49
  4. Step 4: Simplify right side
    20,845.92x = 505,387,242.49
  5. Step 5: Solve for x
    x = 505,387,242.49/20,845.92
  6. Step 6: Final answer
    x = 24,243.94

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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.