Home / 19,660.46-27,099.82-13,285.06

Finding the Fourth Proportional to 19,660.46, 27,099.82 and 13,285.06

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Solution

The fourth proportional to 19,660.46, 27,099.82 and 13,285.06 is: 18,312.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,660.46 : 27,099.82 = 13,285.06 : x
  2. Step 2: Convert to fraction form
    19,660.46/27,099.82 = 13,285.06/x
  3. Step 3: Cross multiply
    19,660.46x = 27,099.82 × 13,285.06
  4. Step 4: Simplify right side
    19,660.46x = 360,022,734.69
  5. Step 5: Solve for x
    x = 360,022,734.69/19,660.46
  6. Step 6: Final answer
    x = 18,312.02

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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.