Home / 28,673.66-43,002.29-11,139.39

Finding the Fourth Proportional to 28,673.66, 43,002.29 and 11,139.39

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Solution

The fourth proportional to 28,673.66, 43,002.29 and 11,139.39 is: 16,705.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,673.66 : 43,002.29 = 11,139.39 : x
  2. Step 2: Convert to fraction form
    28,673.66/43,002.29 = 11,139.39/x
  3. Step 3: Cross multiply
    28,673.66x = 43,002.29 × 11,139.39
  4. Step 4: Simplify right side
    28,673.66x = 479,019,307.05
  5. Step 5: Solve for x
    x = 479,019,307.05/28,673.66
  6. Step 6: Final answer
    x = 16,705.90

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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.