Home / 23,003.28-31,740.64-12,930.38

Finding the Fourth Proportional to 23,003.28, 31,740.64 and 12,930.38

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Solution

The fourth proportional to 23,003.28, 31,740.64 and 12,930.38 is: 17,841.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,003.28 : 31,740.64 = 12,930.38 : x
  2. Step 2: Convert to fraction form
    23,003.28/31,740.64 = 12,930.38/x
  3. Step 3: Cross multiply
    23,003.28x = 31,740.64 × 12,930.38
  4. Step 4: Simplify right side
    23,003.28x = 410,418,536.64
  5. Step 5: Solve for x
    x = 410,418,536.64/23,003.28
  6. Step 6: Final answer
    x = 17,841.74

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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.