Home / 20,539,417.76-28,345,282.24-11,372,060.48

Finding the Fourth Proportional to 20,539,417.76, 28,345,282.24 and 11,372,060.48

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Solution

The fourth proportional to 20,539,417.76, 28,345,282.24 and 11,372,060.48 is: 15,693,933.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,539,417.76 : 28,345,282.24 = 11,372,060.48 : x
  2. Step 2: Convert to fraction form
    20,539,417.76/28,345,282.24 = 11,372,060.48/x
  3. Step 3: Cross multiply
    20,539,417.76x = 28,345,282.24 × 11,372,060.48
  4. Step 4: Simplify right side
    20,539,417.76x = 322,344,263,955,949.88
  5. Step 5: Solve for x
    x = 322,344,263,955,949.88/20,539,417.76
  6. Step 6: Final answer
    x = 15,693,933.87

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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.