Home / 36,828.96-50,815.12-21,720.40

Finding the Fourth Proportional to 36,828.96, 50,815.12 and 21,720.40

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Solution

The fourth proportional to 36,828.96, 50,815.12 and 21,720.40 is: 29,968.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,828.96 : 50,815.12 = 21,720.40 : x
  2. Step 2: Convert to fraction form
    36,828.96/50,815.12 = 21,720.40/x
  3. Step 3: Cross multiply
    36,828.96x = 50,815.12 × 21,720.40
  4. Step 4: Simplify right side
    36,828.96x = 1,103,724,732.45
  5. Step 5: Solve for x
    x = 1,103,724,732.45/36,828.96
  6. Step 6: Final answer
    x = 29,968.94

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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.