Home / 20,080.13-30,079.29-9,518.14

Finding the Fourth Proportional to 20,080.13, 30,079.29 and 9,518.14

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Solution

The fourth proportional to 20,080.13, 30,079.29 and 9,518.14 is: 14,257.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,080.13 : 30,079.29 = 9,518.14 : x
  2. Step 2: Convert to fraction form
    20,080.13/30,079.29 = 9,518.14/x
  3. Step 3: Cross multiply
    20,080.13x = 30,079.29 × 9,518.14
  4. Step 4: Simplify right side
    20,080.13x = 286,298,893.32
  5. Step 5: Solve for x
    x = 286,298,893.32/20,080.13
  6. Step 6: Final answer
    x = 14,257.82

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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.