Home / 30,012.04-45,046.31-15,231.56

Finding the Fourth Proportional to 30,012.04, 45,046.31 and 15,231.56

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Solution

The fourth proportional to 30,012.04, 45,046.31 and 15,231.56 is: 22,861.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,012.04 : 45,046.31 = 15,231.56 : x
  2. Step 2: Convert to fraction form
    30,012.04/45,046.31 = 15,231.56/x
  3. Step 3: Cross multiply
    30,012.04x = 45,046.31 × 15,231.56
  4. Step 4: Simplify right side
    30,012.04x = 686,125,610.00
  5. Step 5: Solve for x
    x = 686,125,610.00/30,012.04
  6. Step 6: Final answer
    x = 22,861.68

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1.5x scale

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.