Home / 22,703.30-31,331.46-13,745.72

Finding the Fourth Proportional to 22,703.30, 31,331.46 and 13,745.72

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Solution

The fourth proportional to 22,703.30, 31,331.46 and 13,745.72 is: 18,969.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,703.30 : 31,331.46 = 13,745.72 : x
  2. Step 2: Convert to fraction form
    22,703.30/31,331.46 = 13,745.72/x
  3. Step 3: Cross multiply
    22,703.30x = 31,331.46 × 13,745.72
  4. Step 4: Simplify right side
    22,703.30x = 430,673,476.35
  5. Step 5: Solve for x
    x = 430,673,476.35/22,703.30
  6. Step 6: Final answer
    x = 18,969.64

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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.