Home / 35,136.80-48,512.18-20,801.26

Finding the Fourth Proportional to 35,136.80, 48,512.18 and 20,801.26

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Solution

The fourth proportional to 35,136.80, 48,512.18 and 20,801.26 is: 28,719.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,136.80 : 48,512.18 = 20,801.26 : x
  2. Step 2: Convert to fraction form
    35,136.80/48,512.18 = 20,801.26/x
  3. Step 3: Cross multiply
    35,136.80x = 48,512.18 × 20,801.26
  4. Step 4: Simplify right side
    35,136.80x = 1,009,114,122.78
  5. Step 5: Solve for x
    x = 1,009,114,122.78/35,136.80
  6. Step 6: Final answer
    x = 28,719.58

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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.