Home / 23,102.80-31,881.14-13,031.09

Finding the Fourth Proportional to 23,102.80, 31,881.14 and 13,031.09

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Solution

The fourth proportional to 23,102.80, 31,881.14 and 13,031.09 is: 17,982.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,102.80 : 31,881.14 = 13,031.09 : x
  2. Step 2: Convert to fraction form
    23,102.80/31,881.14 = 13,031.09/x
  3. Step 3: Cross multiply
    23,102.80x = 31,881.14 × 13,031.09
  4. Step 4: Simplify right side
    23,102.80x = 415,446,004.64
  5. Step 5: Solve for x
    x = 415,446,004.64/23,102.80
  6. Step 6: Final answer
    x = 17,982.50

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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.