Home / 20,707.19-28,614.69-16,928.92

Finding the Fourth Proportional to 20,707.19, 28,614.69 and 16,928.92

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Solution

The fourth proportional to 20,707.19, 28,614.69 and 16,928.92 is: 23,393.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,707.19 : 28,614.69 = 16,928.92 : x
  2. Step 2: Convert to fraction form
    20,707.19/28,614.69 = 16,928.92/x
  3. Step 3: Cross multiply
    20,707.19x = 28,614.69 × 16,928.92
  4. Step 4: Simplify right side
    20,707.19x = 484,415,961.69
  5. Step 5: Solve for x
    x = 484,415,961.69/20,707.19
  6. Step 6: Final answer
    x = 23,393.61

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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.