Home / 33,820.34-46,661.49-20,395.70

Finding the Fourth Proportional to 33,820.34, 46,661.49 and 20,395.70

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Solution

The fourth proportional to 33,820.34, 46,661.49 and 20,395.70 is: 28,139.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,820.34 : 46,661.49 = 20,395.70 : x
  2. Step 2: Convert to fraction form
    33,820.34/46,661.49 = 20,395.70/x
  3. Step 3: Cross multiply
    33,820.34x = 46,661.49 × 20,395.70
  4. Step 4: Simplify right side
    33,820.34x = 951,693,751.59
  5. Step 5: Solve for x
    x = 951,693,751.59/33,820.34
  6. Step 6: Final answer
    x = 28,139.69

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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.