Home / 19,537.68-29,313-12,989.64

Finding the Fourth Proportional to 19,537.68, 29,313 and 12,989.64

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Solution

The fourth proportional to 19,537.68, 29,313 and 12,989.64 is: 19,488.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,537.68 : 29,313 = 12,989.64 : x
  2. Step 2: Convert to fraction form
    19,537.68/29,313 = 12,989.64/x
  3. Step 3: Cross multiply
    19,537.68x = 29,313 × 12,989.64
  4. Step 4: Simplify right side
    19,537.68x = 380,765,317.32
  5. Step 5: Solve for x
    x = 380,765,317.32/19,537.68
  6. Step 6: Final answer
    x = 19,488.77

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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.