Home / 20,750.63-28,635.89-12,367.13

Finding the Fourth Proportional to 20,750.63, 28,635.89 and 12,367.13

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Solution

The fourth proportional to 20,750.63, 28,635.89 and 12,367.13 is: 17,066.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,750.63 : 28,635.89 = 12,367.13 : x
  2. Step 2: Convert to fraction form
    20,750.63/28,635.89 = 12,367.13/x
  3. Step 3: Cross multiply
    20,750.63x = 28,635.89 × 12,367.13
  4. Step 4: Simplify right side
    20,750.63x = 354,143,569.28
  5. Step 5: Solve for x
    x = 354,143,569.28/20,750.63
  6. Step 6: Final answer
    x = 17,066.65

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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.