Home / 21,489.33-32,086.93-19,253.73

Finding the Fourth Proportional to 21,489.33, 32,086.93 and 19,253.73

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Solution

The fourth proportional to 21,489.33, 32,086.93 and 19,253.73 is: 28,748.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,489.33 : 32,086.93 = 19,253.73 : x
  2. Step 2: Convert to fraction form
    21,489.33/32,086.93 = 19,253.73/x
  3. Step 3: Cross multiply
    21,489.33x = 32,086.93 × 19,253.73
  4. Step 4: Simplify right side
    21,489.33x = 617,793,038.61
  5. Step 5: Solve for x
    x = 617,793,038.61/21,489.33
  6. Step 6: Final answer
    x = 28,748.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.