Home / 33,819.84-46,660.80-20,395.20

Finding the Fourth Proportional to 33,819.84, 46,660.80 and 20,395.20

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Solution

The fourth proportional to 33,819.84, 46,660.80 and 20,395.20 is: 28,139.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,819.84 : 46,660.80 = 20,395.20 : x
  2. Step 2: Convert to fraction form
    33,819.84/46,660.80 = 20,395.20/x
  3. Step 3: Cross multiply
    33,819.84x = 46,660.80 × 20,395.20
  4. Step 4: Simplify right side
    33,819.84x = 951,656,348.16
  5. Step 5: Solve for x
    x = 951,656,348.16/33,819.84
  6. Step 6: Final answer
    x = 28,139.00

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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.