Home / 35,120.36-48,466.86-20,970.56

Finding the Fourth Proportional to 35,120.36, 48,466.86 and 20,970.56

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Solution

The fourth proportional to 35,120.36, 48,466.86 and 20,970.56 is: 28,939.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,120.36 : 48,466.86 = 20,970.56 : x
  2. Step 2: Convert to fraction form
    35,120.36/48,466.86 = 20,970.56/x
  3. Step 3: Cross multiply
    35,120.36x = 48,466.86 × 20,970.56
  4. Step 4: Simplify right side
    35,120.36x = 1,016,377,195.64
  5. Step 5: Solve for x
    x = 1,016,377,195.64/35,120.36
  6. Step 6: Final answer
    x = 28,939.83

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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.