Home / 23,162.90-31,966.78-19,379.39

Finding the Fourth Proportional to 23,162.90, 31,966.78 and 19,379.39

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Solution

The fourth proportional to 23,162.90, 31,966.78 and 19,379.39 is: 26,745.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,162.90 : 31,966.78 = 19,379.39 : x
  2. Step 2: Convert to fraction form
    23,162.90/31,966.78 = 19,379.39/x
  3. Step 3: Cross multiply
    23,162.90x = 31,966.78 × 19,379.39
  4. Step 4: Simplify right side
    23,162.90x = 619,496,728.13
  5. Step 5: Solve for x
    x = 619,496,728.13/23,162.90
  6. Step 6: Final answer
    x = 26,745.21

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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.