Home / 19,390.41-29,129.36-11,604.69

Finding the Fourth Proportional to 19,390.41, 29,129.36 and 11,604.69

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Solution

The fourth proportional to 19,390.41, 29,129.36 and 11,604.69 is: 17,433.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,390.41 : 29,129.36 = 11,604.69 : x
  2. Step 2: Convert to fraction form
    19,390.41/29,129.36 = 11,604.69/x
  3. Step 3: Cross multiply
    19,390.41x = 29,129.36 × 11,604.69
  4. Step 4: Simplify right side
    19,390.41x = 338,037,134.67
  5. Step 5: Solve for x
    x = 338,037,134.67/19,390.41
  6. Step 6: Final answer
    x = 17,433.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.