Home / 20,626.25-30,928.92-10,080.51

Finding the Fourth Proportional to 20,626.25, 30,928.92 and 10,080.51

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Solution

The fourth proportional to 20,626.25, 30,928.92 and 10,080.51 is: 15,115.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,626.25 : 30,928.92 = 10,080.51 : x
  2. Step 2: Convert to fraction form
    20,626.25/30,928.92 = 10,080.51/x
  3. Step 3: Cross multiply
    20,626.25x = 30,928.92 × 10,080.51
  4. Step 4: Simplify right side
    20,626.25x = 311,779,287.35
  5. Step 5: Solve for x
    x = 311,779,287.35/20,626.25
  6. Step 6: Final answer
    x = 15,115.66

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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.