Home / 16,550.33-22,807.37-13,721.81

Finding the Fourth Proportional to 16,550.33, 22,807.37 and 13,721.81

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Solution

The fourth proportional to 16,550.33, 22,807.37 and 13,721.81 is: 18,909.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,550.33 : 22,807.37 = 13,721.81 : x
  2. Step 2: Convert to fraction form
    16,550.33/22,807.37 = 13,721.81/x
  3. Step 3: Cross multiply
    16,550.33x = 22,807.37 × 13,721.81
  4. Step 4: Simplify right side
    16,550.33x = 312,958,318.01
  5. Step 5: Solve for x
    x = 312,958,318.01/16,550.33
  6. Step 6: Final answer
    x = 18,909.50

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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.