Home / 35,237.54-48,626.79-20,129.90

Finding the Fourth Proportional to 35,237.54, 48,626.79 and 20,129.90

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Solution

The fourth proportional to 35,237.54, 48,626.79 and 20,129.90 is: 27,778.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,237.54 : 48,626.79 = 20,129.90 : x
  2. Step 2: Convert to fraction form
    35,237.54/48,626.79 = 20,129.90/x
  3. Step 3: Cross multiply
    35,237.54x = 48,626.79 × 20,129.90
  4. Step 4: Simplify right side
    35,237.54x = 978,852,176.89
  5. Step 5: Solve for x
    x = 978,852,176.89/35,237.54
  6. Step 6: Final answer
    x = 27,778.68

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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.