Home / 21,540,007.30-32,310,010.95-20,689,701.70

Finding the Fourth Proportional to 21,540,007.30, 32,310,010.95 and 20,689,701.70

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Solution

The fourth proportional to 21,540,007.30, 32,310,010.95 and 20,689,701.70 is: 31,034,552.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,540,007.30 : 32,310,010.95 = 20,689,701.70 : x
  2. Step 2: Convert to fraction form
    21,540,007.30/32,310,010.95 = 20,689,701.70/x
  3. Step 3: Cross multiply
    21,540,007.30x = 32,310,010.95 × 20,689,701.70
  4. Step 4: Simplify right side
    21,540,007.30x = 668,484,488,479,233.62
  5. Step 5: Solve for x
    x = 668,484,488,479,233.62/21,540,007.30
  6. Step 6: Final answer
    x = 31,034,552.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.