Home / 20,260.32-27,937.20-13,173.60

Finding the Fourth Proportional to 20,260.32, 27,937.20 and 13,173.60

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Solution

The fourth proportional to 20,260.32, 27,937.20 and 13,173.60 is: 18,165.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,260.32 : 27,937.20 = 13,173.60 : x
  2. Step 2: Convert to fraction form
    20,260.32/27,937.20 = 13,173.60/x
  3. Step 3: Cross multiply
    20,260.32x = 27,937.20 × 13,173.60
  4. Step 4: Simplify right side
    20,260.32x = 368,033,497.92
  5. Step 5: Solve for x
    x = 368,033,497.92/20,260.32
  6. Step 6: Final answer
    x = 18,165.24

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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.