Home / 20,029.68-30,048.81-5,990.79

Finding the Fourth Proportional to 20,029.68, 30,048.81 and 5,990.79

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Solution

The fourth proportional to 20,029.68, 30,048.81 and 5,990.79 is: 8,987.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,029.68 : 30,048.81 = 5,990.79 : x
  2. Step 2: Convert to fraction form
    20,029.68/30,048.81 = 5,990.79/x
  3. Step 3: Cross multiply
    20,029.68x = 30,048.81 × 5,990.79
  4. Step 4: Simplify right side
    20,029.68x = 180,016,110.46
  5. Step 5: Solve for x
    x = 180,016,110.46/20,029.68
  6. Step 6: Final answer
    x = 8,987.47

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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.