Home / 20,080.59-27,715.86-13,366.50

Finding the Fourth Proportional to 20,080.59, 27,715.86 and 13,366.50

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Solution

The fourth proportional to 20,080.59, 27,715.86 and 13,366.50 is: 18,448.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,080.59 : 27,715.86 = 13,366.50 : x
  2. Step 2: Convert to fraction form
    20,080.59/27,715.86 = 13,366.50/x
  3. Step 3: Cross multiply
    20,080.59x = 27,715.86 × 13,366.50
  4. Step 4: Simplify right side
    20,080.59x = 370,464,042.69
  5. Step 5: Solve for x
    x = 370,464,042.69/20,080.59
  6. Step 6: Final answer
    x = 18,448.86

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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.