Home / 35,720.60-49,297.21-19,808.15

Finding the Fourth Proportional to 35,720.60, 49,297.21 and 19,808.15

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Solution

The fourth proportional to 35,720.60, 49,297.21 and 19,808.15 is: 27,336.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,720.60 : 49,297.21 = 19,808.15 : x
  2. Step 2: Convert to fraction form
    35,720.60/49,297.21 = 19,808.15/x
  3. Step 3: Cross multiply
    35,720.60x = 49,297.21 × 19,808.15
  4. Step 4: Simplify right side
    35,720.60x = 976,486,234.26
  5. Step 5: Solve for x
    x = 976,486,234.26/35,720.60
  6. Step 6: Final answer
    x = 27,336.79

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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.