Home / 20,106.92-30,120.08-9,587.15

Finding the Fourth Proportional to 20,106.92, 30,120.08 and 9,587.15

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Solution

The fourth proportional to 20,106.92, 30,120.08 and 9,587.15 is: 14,361.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,106.92 : 30,120.08 = 9,587.15 : x
  2. Step 2: Convert to fraction form
    20,106.92/30,120.08 = 9,587.15/x
  3. Step 3: Cross multiply
    20,106.92x = 30,120.08 × 9,587.15
  4. Step 4: Simplify right side
    20,106.92x = 288,765,526.44
  5. Step 5: Solve for x
    x = 288,765,526.44/20,106.92
  6. Step 6: Final answer
    x = 14,361.50

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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.