Home / 23,110.96-31,881.84-15,149.68

Finding the Fourth Proportional to 23,110.96, 31,881.84 and 15,149.68

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Solution

The fourth proportional to 23,110.96, 31,881.84 and 15,149.68 is: 20,899.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,110.96 : 31,881.84 = 15,149.68 : x
  2. Step 2: Convert to fraction form
    23,110.96/31,881.84 = 15,149.68/x
  3. Step 3: Cross multiply
    23,110.96x = 31,881.84 × 15,149.68
  4. Step 4: Simplify right side
    23,110.96x = 482,999,673.81
  5. Step 5: Solve for x
    x = 482,999,673.81/23,110.96
  6. Step 6: Final answer
    x = 20,899.16

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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.