Home / 20,323.35-30,488.19-12,009.36

Finding the Fourth Proportional to 20,323.35, 30,488.19 and 12,009.36

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Solution

The fourth proportional to 20,323.35, 30,488.19 and 12,009.36 is: 18,015.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,323.35 : 30,488.19 = 12,009.36 : x
  2. Step 2: Convert to fraction form
    20,323.35/30,488.19 = 12,009.36/x
  3. Step 3: Cross multiply
    20,323.35x = 30,488.19 × 12,009.36
  4. Step 4: Simplify right side
    20,323.35x = 366,143,649.46
  5. Step 5: Solve for x
    x = 366,143,649.46/20,323.35
  6. Step 6: Final answer
    x = 18,015.91

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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.