Home / 21,005,994.40-31,508,991.60-17,982,685.60

Finding the Fourth Proportional to 21,005,994.40, 31,508,991.60 and 17,982,685.60

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Solution

The fourth proportional to 21,005,994.40, 31,508,991.60 and 17,982,685.60 is: 26,974,028.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,005,994.40 : 31,508,991.60 = 17,982,685.60 : x
  2. Step 2: Convert to fraction form
    21,005,994.40/31,508,991.60 = 17,982,685.60/x
  3. Step 3: Cross multiply
    21,005,994.40x = 31,508,991.60 × 17,982,685.60
  4. Step 4: Simplify right side
    21,005,994.40x = 566,616,289,515,841
  5. Step 5: Solve for x
    x = 566,616,289,515,841/21,005,994.40
  6. Step 6: Final answer
    x = 26,974,028.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.