Home / 20,967,879.75-28,935,398-11,548,489.74

Finding the Fourth Proportional to 20,967,879.75, 28,935,398 and 11,548,489.74

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Solution

The fourth proportional to 20,967,879.75, 28,935,398 and 11,548,489.74 is: 15,936,763.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,967,879.75 : 28,935,398 = 11,548,489.74 : x
  2. Step 2: Convert to fraction form
    20,967,879.75/28,935,398 = 11,548,489.74/x
  3. Step 3: Cross multiply
    20,967,879.75x = 28,935,398 × 11,548,489.74
  4. Step 4: Simplify right side
    20,967,879.75x = 334,160,146,925,816.50
  5. Step 5: Solve for x
    x = 334,160,146,925,816.50/20,967,879.75
  6. Step 6: Final answer
    x = 15,936,763.80

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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.