Home / 20,080.17-27,710.64-12,122.19

Finding the Fourth Proportional to 20,080.17, 27,710.64 and 12,122.19

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Solution

The fourth proportional to 20,080.17, 27,710.64 and 12,122.19 is: 16,728.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,080.17 : 27,710.64 = 12,122.19 : x
  2. Step 2: Convert to fraction form
    20,080.17/27,710.64 = 12,122.19/x
  3. Step 3: Cross multiply
    20,080.17x = 27,710.64 × 12,122.19
  4. Step 4: Simplify right side
    20,080.17x = 335,913,643.10
  5. Step 5: Solve for x
    x = 335,913,643.10/20,080.17
  6. Step 6: Final answer
    x = 16,728.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.