Home / 35,419.09-48,878.49-21,272.17

Finding the Fourth Proportional to 35,419.09, 48,878.49 and 21,272.17

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Solution

The fourth proportional to 35,419.09, 48,878.49 and 21,272.17 is: 29,355.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,419.09 : 48,878.49 = 21,272.17 : x
  2. Step 2: Convert to fraction form
    35,419.09/48,878.49 = 21,272.17/x
  3. Step 3: Cross multiply
    35,419.09x = 48,878.49 × 21,272.17
  4. Step 4: Simplify right side
    35,419.09x = 1,039,751,548.62
  5. Step 5: Solve for x
    x = 1,039,751,548.62/35,419.09
  6. Step 6: Final answer
    x = 29,355.68

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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.