Home / 35,233.90-48,623.18-20,128.56

Finding the Fourth Proportional to 35,233.90, 48,623.18 and 20,128.56

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Solution

The fourth proportional to 35,233.90, 48,623.18 and 20,128.56 is: 27,777.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,233.90 : 48,623.18 = 20,128.56 : x
  2. Step 2: Convert to fraction form
    35,233.90/48,623.18 = 20,128.56/x
  3. Step 3: Cross multiply
    35,233.90x = 48,623.18 × 20,128.56
  4. Step 4: Simplify right side
    35,233.90x = 978,714,596.02
  5. Step 5: Solve for x
    x = 978,714,596.02/35,233.90
  6. Step 6: Final answer
    x = 27,777.64

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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.