Home / 22,778.74-31,432.32-13,825.72

Finding the Fourth Proportional to 22,778.74, 31,432.32 and 13,825.72

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Solution

The fourth proportional to 22,778.74, 31,432.32 and 13,825.72 is: 19,078.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,778.74 : 31,432.32 = 13,825.72 : x
  2. Step 2: Convert to fraction form
    22,778.74/31,432.32 = 13,825.72/x
  3. Step 3: Cross multiply
    22,778.74x = 31,432.32 × 13,825.72
  4. Step 4: Simplify right side
    22,778.74x = 434,574,455.27
  5. Step 5: Solve for x
    x = 434,574,455.27/22,778.74
  6. Step 6: Final answer
    x = 19,078.07

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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.