Home / 23,180.52-31,989.66-13,749.14

Finding the Fourth Proportional to 23,180.52, 31,989.66 and 13,749.14

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Solution

The fourth proportional to 23,180.52, 31,989.66 and 13,749.14 is: 18,974.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,180.52 : 31,989.66 = 13,749.14 : x
  2. Step 2: Convert to fraction form
    23,180.52/31,989.66 = 13,749.14/x
  3. Step 3: Cross multiply
    23,180.52x = 31,989.66 × 13,749.14
  4. Step 4: Simplify right side
    23,180.52x = 439,830,313.89
  5. Step 5: Solve for x
    x = 439,830,313.89/23,180.52
  6. Step 6: Final answer
    x = 18,974.13

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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.