Home / 21,294,476.20-31,941,714.30-15,247,858.60

Finding the Fourth Proportional to 21,294,476.20, 31,941,714.30 and 15,247,858.60

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Solution

The fourth proportional to 21,294,476.20, 31,941,714.30 and 15,247,858.60 is: 22,871,787.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,294,476.20 : 31,941,714.30 = 15,247,858.60 : x
  2. Step 2: Convert to fraction form
    21,294,476.20/31,941,714.30 = 15,247,858.60/x
  3. Step 3: Cross multiply
    21,294,476.20x = 31,941,714.30 × 15,247,858.60
  4. Step 4: Simplify right side
    21,294,476.20x = 487,042,743,087,998
  5. Step 5: Solve for x
    x = 487,042,743,087,998/21,294,476.20
  6. Step 6: Final answer
    x = 22,871,787.90

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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.