Home / 35,400.90-48,836.88-21,229.14

Finding the Fourth Proportional to 35,400.90, 48,836.88 and 21,229.14

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Solution

The fourth proportional to 35,400.90, 48,836.88 and 21,229.14 is: 29,286.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,400.90 : 48,836.88 = 21,229.14 : x
  2. Step 2: Convert to fraction form
    35,400.90/48,836.88 = 21,229.14/x
  3. Step 3: Cross multiply
    35,400.90x = 48,836.88 × 21,229.14
  4. Step 4: Simplify right side
    35,400.90x = 1,036,764,962.68
  5. Step 5: Solve for x
    x = 1,036,764,962.68/35,400.90
  6. Step 6: Final answer
    x = 29,286.40

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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.