Home / 35,345.50-48,778.07-20,240.86

Finding the Fourth Proportional to 35,345.50, 48,778.07 and 20,240.86

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Solution

The fourth proportional to 35,345.50, 48,778.07 and 20,240.86 is: 27,933.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,345.50 : 48,778.07 = 20,240.86 : x
  2. Step 2: Convert to fraction form
    35,345.50/48,778.07 = 20,240.86/x
  3. Step 3: Cross multiply
    35,345.50x = 48,778.07 × 20,240.86
  4. Step 4: Simplify right side
    35,345.50x = 987,310,085.94
  5. Step 5: Solve for x
    x = 987,310,085.94/35,345.50
  6. Step 6: Final answer
    x = 27,933.12

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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.