Home / 23,106.96-31,886.12-13,170.32

Finding the Fourth Proportional to 23,106.96, 31,886.12 and 13,170.32

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Solution

The fourth proportional to 23,106.96, 31,886.12 and 13,170.32 is: 18,174.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,106.96 : 31,886.12 = 13,170.32 : x
  2. Step 2: Convert to fraction form
    23,106.96/31,886.12 = 13,170.32/x
  3. Step 3: Cross multiply
    23,106.96x = 31,886.12 × 13,170.32
  4. Step 4: Simplify right side
    23,106.96x = 419,950,403.96
  5. Step 5: Solve for x
    x = 419,950,403.96/23,106.96
  6. Step 6: Final answer
    x = 18,174.20

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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.