Home / 20,080.18-27,705.52-12,530.17

Finding the Fourth Proportional to 20,080.18, 27,705.52 and 12,530.17

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Solution

The fourth proportional to 20,080.18, 27,705.52 and 12,530.17 is: 17,288.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,080.18 : 27,705.52 = 12,530.17 : x
  2. Step 2: Convert to fraction form
    20,080.18/27,705.52 = 12,530.17/x
  3. Step 3: Cross multiply
    20,080.18x = 27,705.52 × 12,530.17
  4. Step 4: Simplify right side
    20,080.18x = 347,154,875.54
  5. Step 5: Solve for x
    x = 347,154,875.54/20,080.18
  6. Step 6: Final answer
    x = 17,288.43

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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.