Home / 22,778.66-31,449.16-14,292.40

Finding the Fourth Proportional to 22,778.66, 31,449.16 and 14,292.40

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Solution

The fourth proportional to 22,778.66, 31,449.16 and 14,292.40 is: 19,732.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,778.66 : 31,449.16 = 14,292.40 : x
  2. Step 2: Convert to fraction form
    22,778.66/31,449.16 = 14,292.40/x
  3. Step 3: Cross multiply
    22,778.66x = 31,449.16 × 14,292.40
  4. Step 4: Simplify right side
    22,778.66x = 449,483,974.38
  5. Step 5: Solve for x
    x = 449,483,974.38/22,778.66
  6. Step 6: Final answer
    x = 19,732.68

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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.