Home / 20,088.32-30,106.32-11,203.28

Finding the Fourth Proportional to 20,088.32, 30,106.32 and 11,203.28

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Solution

The fourth proportional to 20,088.32, 30,106.32 and 11,203.28 is: 16,790.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,088.32 : 30,106.32 = 11,203.28 : x
  2. Step 2: Convert to fraction form
    20,088.32/30,106.32 = 11,203.28/x
  3. Step 3: Cross multiply
    20,088.32x = 30,106.32 × 11,203.28
  4. Step 4: Simplify right side
    20,088.32x = 337,289,532.73
  5. Step 5: Solve for x
    x = 337,289,532.73/20,088.32
  6. Step 6: Final answer
    x = 16,790.33

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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.