Home / 21,303,250.80-31,954,876.20-17,902,028.40

Finding the Fourth Proportional to 21,303,250.80, 31,954,876.20 and 17,902,028.40

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Solution

The fourth proportional to 21,303,250.80, 31,954,876.20 and 17,902,028.40 is: 26,853,042.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,303,250.80 : 31,954,876.20 = 17,902,028.40 : x
  2. Step 2: Convert to fraction form
    21,303,250.80/31,954,876.20 = 17,902,028.40/x
  3. Step 3: Cross multiply
    21,303,250.80x = 31,954,876.20 × 17,902,028.40
  4. Step 4: Simplify right side
    21,303,250.80x = 572,057,101,250,884
  5. Step 5: Solve for x
    x = 572,057,101,250,884/21,303,250.80
  6. Step 6: Final answer
    x = 26,853,042.60

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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.