Home / 19,648.08-29,391.12-12,617.28

Finding the Fourth Proportional to 19,648.08, 29,391.12 and 12,617.28

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Solution

The fourth proportional to 19,648.08, 29,391.12 and 12,617.28 is: 18,873.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,648.08 : 29,391.12 = 12,617.28 : x
  2. Step 2: Convert to fraction form
    19,648.08/29,391.12 = 12,617.28/x
  3. Step 3: Cross multiply
    19,648.08x = 29,391.12 × 12,617.28
  4. Step 4: Simplify right side
    19,648.08x = 370,835,990.55
  5. Step 5: Solve for x
    x = 370,835,990.55/19,648.08
  6. Step 6: Final answer
    x = 18,873.90

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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.