Home / 28,981.09-43,446.49-12,958.46

Finding the Fourth Proportional to 28,981.09, 43,446.49 and 12,958.46

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Solution

The fourth proportional to 28,981.09, 43,446.49 and 12,958.46 is: 19,426.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,981.09 : 43,446.49 = 12,958.46 : x
  2. Step 2: Convert to fraction form
    28,981.09/43,446.49 = 12,958.46/x
  3. Step 3: Cross multiply
    28,981.09x = 43,446.49 × 12,958.46
  4. Step 4: Simplify right side
    28,981.09x = 562,999,353.18
  5. Step 5: Solve for x
    x = 562,999,353.18/28,981.09
  6. Step 6: Final answer
    x = 19,426.44

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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.