Home / 23,129.96-31,911.40-13,057.16

Finding the Fourth Proportional to 23,129.96, 31,911.40 and 13,057.16

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Solution

The fourth proportional to 23,129.96, 31,911.40 and 13,057.16 is: 18,014.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,129.96 : 31,911.40 = 13,057.16 : x
  2. Step 2: Convert to fraction form
    23,129.96/31,911.40 = 13,057.16/x
  3. Step 3: Cross multiply
    23,129.96x = 31,911.40 × 13,057.16
  4. Step 4: Simplify right side
    23,129.96x = 416,672,255.62
  5. Step 5: Solve for x
    x = 416,672,255.62/23,129.96
  6. Step 6: Final answer
    x = 18,014.40

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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.