Home / 20,299.56-27,995.25-12,746.61

Finding the Fourth Proportional to 20,299.56, 27,995.25 and 12,746.61

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Solution

The fourth proportional to 20,299.56, 27,995.25 and 12,746.61 is: 17,578.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,299.56 : 27,995.25 = 12,746.61 : x
  2. Step 2: Convert to fraction form
    20,299.56/27,995.25 = 12,746.61/x
  3. Step 3: Cross multiply
    20,299.56x = 27,995.25 × 12,746.61
  4. Step 4: Simplify right side
    20,299.56x = 356,844,533.60
  5. Step 5: Solve for x
    x = 356,844,533.60/20,299.56
  6. Step 6: Final answer
    x = 17,578.93

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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.