Home / 20,654.49-30,981.70-5,863.55

Finding the Fourth Proportional to 20,654.49, 30,981.70 and 5,863.55

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Solution

The fourth proportional to 20,654.49, 30,981.70 and 5,863.55 is: 8,795.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,654.49 : 30,981.70 = 5,863.55 : x
  2. Step 2: Convert to fraction form
    20,654.49/30,981.70 = 5,863.55/x
  3. Step 3: Cross multiply
    20,654.49x = 30,981.70 × 5,863.55
  4. Step 4: Simplify right side
    20,654.49x = 181,662,747.04
  5. Step 5: Solve for x
    x = 181,662,747.04/20,654.49
  6. Step 6: Final answer
    x = 8,795.32

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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.