Home / 21,294,841.20-31,942,261.80-15,248,223.60

Finding the Fourth Proportional to 21,294,841.20, 31,942,261.80 and 15,248,223.60

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Solution

The fourth proportional to 21,294,841.20, 31,942,261.80 and 15,248,223.60 is: 22,872,335.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,294,841.20 : 31,942,261.80 = 15,248,223.60 : x
  2. Step 2: Convert to fraction form
    21,294,841.20/31,942,261.80 = 15,248,223.60/x
  3. Step 3: Cross multiply
    21,294,841.20x = 31,942,261.80 × 15,248,223.60
  4. Step 4: Simplify right side
    21,294,841.20x = 487,062,750,216,138.50
  5. Step 5: Solve for x
    x = 487,062,750,216,138.50/21,294,841.20
  6. Step 6: Final answer
    x = 22,872,335.40

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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.