Home / 23,001.75-31,742.42-12,930.08

Finding the Fourth Proportional to 23,001.75, 31,742.42 and 12,930.08

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Solution

The fourth proportional to 23,001.75, 31,742.42 and 12,930.08 is: 17,843.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,001.75 : 31,742.42 = 12,930.08 : x
  2. Step 2: Convert to fraction form
    23,001.75/31,742.42 = 12,930.08/x
  3. Step 3: Cross multiply
    23,001.75x = 31,742.42 × 12,930.08
  4. Step 4: Simplify right side
    23,001.75x = 410,431,806.63
  5. Step 5: Solve for x
    x = 410,431,806.63/23,001.75
  6. Step 6: Final answer
    x = 17,843.50

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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.