Home / 31,911.48-44,047.50-18,486

Finding the Fourth Proportional to 31,911.48, 44,047.50 and 18,486

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Solution

The fourth proportional to 31,911.48, 44,047.50 and 18,486 is: 25,516.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,911.48 : 44,047.50 = 18,486 : x
  2. Step 2: Convert to fraction form
    31,911.48/44,047.50 = 18,486/x
  3. Step 3: Cross multiply
    31,911.48x = 44,047.50 × 18,486
  4. Step 4: Simplify right side
    31,911.48x = 814,262,085
  5. Step 5: Solve for x
    x = 814,262,085/31,911.48
  6. Step 6: Final answer
    x = 25,516.27

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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.