Home / 39,530.33-59,299.64-12,878.39

Finding the Fourth Proportional to 39,530.33, 59,299.64 and 12,878.39

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Solution

The fourth proportional to 39,530.33, 59,299.64 and 12,878.39 is: 19,318.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,530.33 : 59,299.64 = 12,878.39 : x
  2. Step 2: Convert to fraction form
    39,530.33/59,299.64 = 12,878.39/x
  3. Step 3: Cross multiply
    39,530.33x = 59,299.64 × 12,878.39
  4. Step 4: Simplify right side
    39,530.33x = 763,684,095.37
  5. Step 5: Solve for x
    x = 763,684,095.37/39,530.33
  6. Step 6: Final answer
    x = 19,318.94

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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.