Home / 35,785.19-49,385.27-20,679.86

Finding the Fourth Proportional to 35,785.19, 49,385.27 and 20,679.86

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Solution

The fourth proportional to 35,785.19, 49,385.27 and 20,679.86 is: 28,539.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,785.19 : 49,385.27 = 20,679.86 : x
  2. Step 2: Convert to fraction form
    35,785.19/49,385.27 = 20,679.86/x
  3. Step 3: Cross multiply
    35,785.19x = 49,385.27 × 20,679.86
  4. Step 4: Simplify right side
    35,785.19x = 1,021,280,469.66
  5. Step 5: Solve for x
    x = 1,021,280,469.66/35,785.19
  6. Step 6: Final answer
    x = 28,539.19

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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.