Home / 20,036.78-30,052.52-8,940.89

Finding the Fourth Proportional to 20,036.78, 30,052.52 and 8,940.89

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Solution

The fourth proportional to 20,036.78, 30,052.52 and 8,940.89 is: 13,410.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,036.78 : 30,052.52 = 8,940.89 : x
  2. Step 2: Convert to fraction form
    20,036.78/30,052.52 = 8,940.89/x
  3. Step 3: Cross multiply
    20,036.78x = 30,052.52 × 8,940.89
  4. Step 4: Simplify right side
    20,036.78x = 268,696,305.97
  5. Step 5: Solve for x
    x = 268,696,305.97/20,036.78
  6. Step 6: Final answer
    x = 13,410.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.