Home / 36,020.21-49,710.71-20,107.05

Finding the Fourth Proportional to 36,020.21, 49,710.71 and 20,107.05

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Solution

The fourth proportional to 36,020.21, 49,710.71 and 20,107.05 is: 27,749.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,020.21 : 49,710.71 = 20,107.05 : x
  2. Step 2: Convert to fraction form
    36,020.21/49,710.71 = 20,107.05/x
  3. Step 3: Cross multiply
    36,020.21x = 49,710.71 × 20,107.05
  4. Step 4: Simplify right side
    36,020.21x = 999,535,630.97
  5. Step 5: Solve for x
    x = 999,535,630.97/36,020.21
  6. Step 6: Final answer
    x = 27,749.30

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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.