Home / 35,383.20-48,826.56-20,275.68

Finding the Fourth Proportional to 35,383.20, 48,826.56 and 20,275.68

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Solution

The fourth proportional to 35,383.20, 48,826.56 and 20,275.68 is: 27,979.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,383.20 : 48,826.56 = 20,275.68 : x
  2. Step 2: Convert to fraction form
    35,383.20/48,826.56 = 20,275.68/x
  3. Step 3: Cross multiply
    35,383.20x = 48,826.56 × 20,275.68
  4. Step 4: Simplify right side
    35,383.20x = 989,991,706.06
  5. Step 5: Solve for x
    x = 989,991,706.06/35,383.20
  6. Step 6: Final answer
    x = 27,979.15

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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.