Home / 20,228.01-30,339.86-7,080.63

Finding the Fourth Proportional to 20,228.01, 30,339.86 and 7,080.63

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Solution

The fourth proportional to 20,228.01, 30,339.86 and 7,080.63 is: 10,620.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,228.01 : 30,339.86 = 7,080.63 : x
  2. Step 2: Convert to fraction form
    20,228.01/30,339.86 = 7,080.63/x
  3. Step 3: Cross multiply
    20,228.01x = 30,339.86 × 7,080.63
  4. Step 4: Simplify right side
    20,228.01x = 214,825,287.51
  5. Step 5: Solve for x
    x = 214,825,287.51/20,228.01
  6. Step 6: Final answer
    x = 10,620.19

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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.