Home / 19,874.15-29,810.21-7,389.35

Finding the Fourth Proportional to 19,874.15, 29,810.21 and 7,389.35

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Solution

The fourth proportional to 19,874.15, 29,810.21 and 7,389.35 is: 11,083.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,874.15 : 29,810.21 = 7,389.35 : x
  2. Step 2: Convert to fraction form
    19,874.15/29,810.21 = 7,389.35/x
  3. Step 3: Cross multiply
    19,874.15x = 29,810.21 × 7,389.35
  4. Step 4: Simplify right side
    19,874.15x = 220,277,889.27
  5. Step 5: Solve for x
    x = 220,277,889.27/19,874.15
  6. Step 6: Final answer
    x = 11,083.64

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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.