Home / 20,902.58-28,817.07-14,923.86

Finding the Fourth Proportional to 20,902.58, 28,817.07 and 14,923.86

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Solution

The fourth proportional to 20,902.58, 28,817.07 and 14,923.86 is: 20,574.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,902.58 : 28,817.07 = 14,923.86 : x
  2. Step 2: Convert to fraction form
    20,902.58/28,817.07 = 14,923.86/x
  3. Step 3: Cross multiply
    20,902.58x = 28,817.07 × 14,923.86
  4. Step 4: Simplify right side
    20,902.58x = 430,061,918.29
  5. Step 5: Solve for x
    x = 430,061,918.29/20,902.58
  6. Step 6: Final answer
    x = 20,574.59

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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.