Home / 28,449.42-39,250.84-18,383.79

Finding the Fourth Proportional to 28,449.42, 39,250.84 and 18,383.79

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Solution

The fourth proportional to 28,449.42, 39,250.84 and 18,383.79 is: 25,363.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,449.42 : 39,250.84 = 18,383.79 : x
  2. Step 2: Convert to fraction form
    28,449.42/39,250.84 = 18,383.79/x
  3. Step 3: Cross multiply
    28,449.42x = 39,250.84 × 18,383.79
  4. Step 4: Simplify right side
    28,449.42x = 721,579,153.92
  5. Step 5: Solve for x
    x = 721,579,153.92/28,449.42
  6. Step 6: Final answer
    x = 25,363.58

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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.