Home / 28,528.73-39,383.39-18,984.53

Finding the Fourth Proportional to 28,528.73, 39,383.39 and 18,984.53

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Solution

The fourth proportional to 28,528.73, 39,383.39 and 18,984.53 is: 26,207.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,528.73 : 39,383.39 = 18,984.53 : x
  2. Step 2: Convert to fraction form
    28,528.73/39,383.39 = 18,984.53/x
  3. Step 3: Cross multiply
    28,528.73x = 39,383.39 × 18,984.53
  4. Step 4: Simplify right side
    28,528.73x = 747,675,019.95
  5. Step 5: Solve for x
    x = 747,675,019.95/28,528.73
  6. Step 6: Final answer
    x = 26,207.79

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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.