Home / 21,011,003.59-28,995,628.62-11,843,643.91

Finding the Fourth Proportional to 21,011,003.59, 28,995,628.62 and 11,843,643.91

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Solution

The fourth proportional to 21,011,003.59, 28,995,628.62 and 11,843,643.91 is: 16,344,478.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,011,003.59 : 28,995,628.62 = 11,843,643.91 : x
  2. Step 2: Convert to fraction form
    21,011,003.59/28,995,628.62 = 11,843,643.91/x
  3. Step 3: Cross multiply
    21,011,003.59x = 28,995,628.62 × 11,843,643.91
  4. Step 4: Simplify right side
    21,011,003.59x = 343,413,900,321,884.75
  5. Step 5: Solve for x
    x = 343,413,900,321,884.75/21,011,003.59
  6. Step 6: Final answer
    x = 16,344,478.68

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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.