Home / 20,946.74-28,872.86-19,229.96

Finding the Fourth Proportional to 20,946.74, 28,872.86 and 19,229.96

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Solution

The fourth proportional to 20,946.74, 28,872.86 and 19,229.96 is: 26,506.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,946.74 : 28,872.86 = 19,229.96 : x
  2. Step 2: Convert to fraction form
    20,946.74/28,872.86 = 19,229.96/x
  3. Step 3: Cross multiply
    20,946.74x = 28,872.86 × 19,229.96
  4. Step 4: Simplify right side
    20,946.74x = 555,223,942.89
  5. Step 5: Solve for x
    x = 555,223,942.89/20,946.74
  6. Step 6: Final answer
    x = 26,506.46

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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.