Home / 23,201.48-32,016.12-13,129.40

Finding the Fourth Proportional to 23,201.48, 32,016.12 and 13,129.40

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Solution

The fourth proportional to 23,201.48, 32,016.12 and 13,129.40 is: 18,117.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,201.48 : 32,016.12 = 13,129.40 : x
  2. Step 2: Convert to fraction form
    23,201.48/32,016.12 = 13,129.40/x
  3. Step 3: Cross multiply
    23,201.48x = 32,016.12 × 13,129.40
  4. Step 4: Simplify right side
    23,201.48x = 420,352,445.93
  5. Step 5: Solve for x
    x = 420,352,445.93/23,201.48
  6. Step 6: Final answer
    x = 18,117.48

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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.