Home / 21,228.04-31,793.50-10,142.52

Finding the Fourth Proportional to 21,228.04, 31,793.50 and 10,142.52

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Solution

The fourth proportional to 21,228.04, 31,793.50 and 10,142.52 is: 15,190.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,228.04 : 31,793.50 = 10,142.52 : x
  2. Step 2: Convert to fraction form
    21,228.04/31,793.50 = 10,142.52/x
  3. Step 3: Cross multiply
    21,228.04x = 31,793.50 × 10,142.52
  4. Step 4: Simplify right side
    21,228.04x = 322,466,209.62
  5. Step 5: Solve for x
    x = 322,466,209.62/21,228.04
  6. Step 6: Final answer
    x = 15,190.58

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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.