Home / 21,011,881.50-28,996,839.34-11,844,524.25

Finding the Fourth Proportional to 21,011,881.50, 28,996,839.34 and 11,844,524.25

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Solution

The fourth proportional to 21,011,881.50, 28,996,839.34 and 11,844,524.25 is: 16,345,693.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,011,881.50 : 28,996,839.34 = 11,844,524.25 : x
  2. Step 2: Convert to fraction form
    21,011,881.50/28,996,839.34 = 11,844,524.25/x
  3. Step 3: Cross multiply
    21,011,881.50x = 28,996,839.34 × 11,844,524.25
  4. Step 4: Simplify right side
    21,011,881.50x = 343,453,766,706,372.69
  5. Step 5: Solve for x
    x = 343,453,766,706,372.69/21,011,881.50
  6. Step 6: Final answer
    x = 16,345,693.11

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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.