Home / 19,954.08-29,910.91-12,938.54

Finding the Fourth Proportional to 19,954.08, 29,910.91 and 12,938.54

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Solution

The fourth proportional to 19,954.08, 29,910.91 and 12,938.54 is: 19,394.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,954.08 : 29,910.91 = 12,938.54 : x
  2. Step 2: Convert to fraction form
    19,954.08/29,910.91 = 12,938.54/x
  3. Step 3: Cross multiply
    19,954.08x = 29,910.91 × 12,938.54
  4. Step 4: Simplify right side
    19,954.08x = 387,003,547.90
  5. Step 5: Solve for x
    x = 387,003,547.90/19,954.08
  6. Step 6: Final answer
    x = 19,394.71

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1.5x scale

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.