Home / 21,150.67-29,180.08-13,601.17

Finding the Fourth Proportional to 21,150.67, 29,180.08 and 13,601.17

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Solution

The fourth proportional to 21,150.67, 29,180.08 and 13,601.17 is: 18,764.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,150.67 : 29,180.08 = 13,601.17 : x
  2. Step 2: Convert to fraction form
    21,150.67/29,180.08 = 13,601.17/x
  3. Step 3: Cross multiply
    21,150.67x = 29,180.08 × 13,601.17
  4. Step 4: Simplify right side
    21,150.67x = 396,883,228.69
  5. Step 5: Solve for x
    x = 396,883,228.69/21,150.67
  6. Step 6: Final answer
    x = 18,764.57

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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.