Home / 20,759.91-28,639.94-14,475.93

Finding the Fourth Proportional to 20,759.91, 28,639.94 and 14,475.93

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Solution

The fourth proportional to 20,759.91, 28,639.94 and 14,475.93 is: 19,970.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,759.91 : 28,639.94 = 14,475.93 : x
  2. Step 2: Convert to fraction form
    20,759.91/28,639.94 = 14,475.93/x
  3. Step 3: Cross multiply
    20,759.91x = 28,639.94 × 14,475.93
  4. Step 4: Simplify right side
    20,759.91x = 414,589,766.64
  5. Step 5: Solve for x
    x = 414,589,766.64/20,759.91
  6. Step 6: Final answer
    x = 19,970.69

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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.