Home / 28,699.11-43,050.49-7,638.81

Finding the Fourth Proportional to 28,699.11, 43,050.49 and 7,638.81

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Solution

The fourth proportional to 28,699.11, 43,050.49 and 7,638.81 is: 11,458.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,699.11 : 43,050.49 = 7,638.81 : x
  2. Step 2: Convert to fraction form
    28,699.11/43,050.49 = 7,638.81/x
  3. Step 3: Cross multiply
    28,699.11x = 43,050.49 × 7,638.81
  4. Step 4: Simplify right side
    28,699.11x = 328,854,332.98
  5. Step 5: Solve for x
    x = 328,854,332.98/28,699.11
  6. Step 6: Final answer
    x = 11,458.69

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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.