Home / 30,180.57-45,299.07-15,400.11

Finding the Fourth Proportional to 30,180.57, 45,299.07 and 15,400.11

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Solution

The fourth proportional to 30,180.57, 45,299.07 and 15,400.11 is: 23,114.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,180.57 : 45,299.07 = 15,400.11 : x
  2. Step 2: Convert to fraction form
    30,180.57/45,299.07 = 15,400.11/x
  3. Step 3: Cross multiply
    30,180.57x = 45,299.07 × 15,400.11
  4. Step 4: Simplify right side
    30,180.57x = 697,610,660.90
  5. Step 5: Solve for x
    x = 697,610,660.90/30,180.57
  6. Step 6: Final answer
    x = 23,114.56

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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.