Home / 28,731.84-43,088-11,206.72

Finding the Fourth Proportional to 28,731.84, 43,088 and 11,206.72

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Solution

The fourth proportional to 28,731.84, 43,088 and 11,206.72 is: 16,806.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,731.84 : 43,088 = 11,206.72 : x
  2. Step 2: Convert to fraction form
    28,731.84/43,088 = 11,206.72/x
  3. Step 3: Cross multiply
    28,731.84x = 43,088 × 11,206.72
  4. Step 4: Simplify right side
    28,731.84x = 482,875,151.36
  5. Step 5: Solve for x
    x = 482,875,151.36/28,731.84
  6. Step 6: Final answer
    x = 16,806.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.