Home / 30,033.88-45,003.26-15,990.12

Finding the Fourth Proportional to 30,033.88, 45,003.26 and 15,990.12

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Solution

The fourth proportional to 30,033.88, 45,003.26 and 15,990.12 is: 23,959.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,033.88 : 45,003.26 = 15,990.12 : x
  2. Step 2: Convert to fraction form
    30,033.88/45,003.26 = 15,990.12/x
  3. Step 3: Cross multiply
    30,033.88x = 45,003.26 × 15,990.12
  4. Step 4: Simplify right side
    30,033.88x = 719,607,527.79
  5. Step 5: Solve for x
    x = 719,607,527.79/30,033.88
  6. Step 6: Final answer
    x = 23,959.86

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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.