Home / 28,954.14-39,956.33-16,378.89

Finding the Fourth Proportional to 28,954.14, 39,956.33 and 16,378.89

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Solution

The fourth proportional to 28,954.14, 39,956.33 and 16,378.89 is: 22,602.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,954.14 : 39,956.33 = 16,378.89 : x
  2. Step 2: Convert to fraction form
    28,954.14/39,956.33 = 16,378.89/x
  3. Step 3: Cross multiply
    28,954.14x = 39,956.33 × 16,378.89
  4. Step 4: Simplify right side
    28,954.14x = 654,440,251.98
  5. Step 5: Solve for x
    x = 654,440,251.98/28,954.14
  6. Step 6: Final answer
    x = 22,602.65

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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.