Home / 20,874,521.12-28,807,073.04-11,582,259.36

Finding the Fourth Proportional to 20,874,521.12, 28,807,073.04 and 11,582,259.36

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Solution

The fourth proportional to 20,874,521.12, 28,807,073.04 and 11,582,259.36 is: 15,983,647.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,874,521.12 : 28,807,073.04 = 11,582,259.36 : x
  2. Step 2: Convert to fraction form
    20,874,521.12/28,807,073.04 = 11,582,259.36/x
  3. Step 3: Cross multiply
    20,874,521.12x = 28,807,073.04 × 11,582,259.36
  4. Step 4: Simplify right side
    20,874,521.12x = 333,650,991,351,743.62
  5. Step 5: Solve for x
    x = 333,650,991,351,743.62/20,874,521.12
  6. Step 6: Final answer
    x = 15,983,647.69

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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.