Home / 35,887.21-49,522.24-20,778.80

Finding the Fourth Proportional to 35,887.21, 49,522.24 and 20,778.80

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Solution

The fourth proportional to 35,887.21, 49,522.24 and 20,778.80 is: 28,673.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,887.21 : 49,522.24 = 20,778.80 : x
  2. Step 2: Convert to fraction form
    35,887.21/49,522.24 = 20,778.80/x
  3. Step 3: Cross multiply
    35,887.21x = 49,522.24 × 20,778.80
  4. Step 4: Simplify right side
    35,887.21x = 1,029,012,720.51
  5. Step 5: Solve for x
    x = 1,029,012,720.51/35,887.21
  6. Step 6: Final answer
    x = 28,673.52

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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.