Home / 19,811.10-29,659.17-15,415.23

Finding the Fourth Proportional to 19,811.10, 29,659.17 and 15,415.23

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Solution

The fourth proportional to 19,811.10, 29,659.17 and 15,415.23 is: 23,078.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,811.10 : 29,659.17 = 15,415.23 : x
  2. Step 2: Convert to fraction form
    19,811.10/29,659.17 = 15,415.23/x
  3. Step 3: Cross multiply
    19,811.10x = 29,659.17 × 15,415.23
  4. Step 4: Simplify right side
    19,811.10x = 457,202,927.16
  5. Step 5: Solve for x
    x = 457,202,927.16/19,811.10
  6. Step 6: Final answer
    x = 23,078.12

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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.