Home / 21,309,087.12-29,405,824.26-13,472,817.35

Finding the Fourth Proportional to 21,309,087.12, 29,405,824.26 and 13,472,817.35

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Solution

The fourth proportional to 21,309,087.12, 29,405,824.26 and 13,472,817.35 is: 18,592,035.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,309,087.12 : 29,405,824.26 = 13,472,817.35 : x
  2. Step 2: Convert to fraction form
    21,309,087.12/29,405,824.26 = 13,472,817.35/x
  3. Step 3: Cross multiply
    21,309,087.12x = 29,405,824.26 × 13,472,817.35
  4. Step 4: Simplify right side
    21,309,087.12x = 396,179,299,249,034.56
  5. Step 5: Solve for x
    x = 396,179,299,249,034.56/21,309,087.12
  6. Step 6: Final answer
    x = 18,592,035.27

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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.