Home / 18,881.28-28,309.77-16,249.59

Finding the Fourth Proportional to 18,881.28, 28,309.77 and 16,249.59

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Solution

The fourth proportional to 18,881.28, 28,309.77 and 16,249.59 is: 24,363.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,881.28 : 28,309.77 = 16,249.59 : x
  2. Step 2: Convert to fraction form
    18,881.28/28,309.77 = 16,249.59/x
  3. Step 3: Cross multiply
    18,881.28x = 28,309.77 × 16,249.59
  4. Step 4: Simplify right side
    18,881.28x = 460,022,155.49
  5. Step 5: Solve for x
    x = 460,022,155.49/18,881.28
  6. Step 6: Final answer
    x = 24,363.93

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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.