Home / 20,811,975.40-28,701,442.74-17,870,792.24

Finding the Fourth Proportional to 20,811,975.40, 28,701,442.74 and 17,870,792.24

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Solution

The fourth proportional to 20,811,975.40, 28,701,442.74 and 17,870,792.24 is: 24,645,306.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,811,975.40 : 28,701,442.74 = 17,870,792.24 : x
  2. Step 2: Convert to fraction form
    20,811,975.40/28,701,442.74 = 17,870,792.24/x
  3. Step 3: Cross multiply
    20,811,975.40x = 28,701,442.74 × 17,870,792.24
  4. Step 4: Simplify right side
    20,811,975.40x = 512,917,520,194,796.25
  5. Step 5: Solve for x
    x = 512,917,520,194,796.25/20,811,975.40
  6. Step 6: Final answer
    x = 24,645,306.86

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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.