Home / 25,494.12-35,119.08-21,705.12

Finding the Fourth Proportional to 25,494.12, 35,119.08 and 21,705.12

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Solution

The fourth proportional to 25,494.12, 35,119.08 and 21,705.12 is: 29,899.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,494.12 : 35,119.08 = 21,705.12 : x
  2. Step 2: Convert to fraction form
    25,494.12/35,119.08 = 21,705.12/x
  3. Step 3: Cross multiply
    25,494.12x = 35,119.08 × 21,705.12
  4. Step 4: Simplify right side
    25,494.12x = 762,263,845.69
  5. Step 5: Solve for x
    x = 762,263,845.69/25,494.12
  6. Step 6: Final answer
    x = 29,899.59

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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.