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Finding the Fourth Proportional to 43,652.82, 65,479.24 and 12,488.07

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Solution

The fourth proportional to 43,652.82, 65,479.24 and 12,488.07 is: 18,732.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,652.82 : 65,479.24 = 12,488.07 : x
  2. Step 2: Convert to fraction form
    43,652.82/65,479.24 = 12,488.07/x
  3. Step 3: Cross multiply
    43,652.82x = 65,479.24 × 12,488.07
  4. Step 4: Simplify right side
    43,652.82x = 817,709,332.67
  5. Step 5: Solve for x
    x = 817,709,332.67/43,652.82
  6. Step 6: Final answer
    x = 18,732.11

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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.