Home / 35,128.54-48,479.16-20,796.60

Finding the Fourth Proportional to 35,128.54, 48,479.16 and 20,796.60

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Solution

The fourth proportional to 35,128.54, 48,479.16 and 20,796.60 is: 28,700.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,128.54 : 48,479.16 = 20,796.60 : x
  2. Step 2: Convert to fraction form
    35,128.54/48,479.16 = 20,796.60/x
  3. Step 3: Cross multiply
    35,128.54x = 48,479.16 × 20,796.60
  4. Step 4: Simplify right side
    35,128.54x = 1,008,201,698.86
  5. Step 5: Solve for x
    x = 1,008,201,698.86/35,128.54
  6. Step 6: Final answer
    x = 28,700.36

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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.