Home / 25,641.36-38,467.60-7,872.08

Finding the Fourth Proportional to 25,641.36, 38,467.60 and 7,872.08

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Solution

The fourth proportional to 25,641.36, 38,467.60 and 7,872.08 is: 11,809.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,641.36 : 38,467.60 = 7,872.08 : x
  2. Step 2: Convert to fraction form
    25,641.36/38,467.60 = 7,872.08/x
  3. Step 3: Cross multiply
    25,641.36x = 38,467.60 × 7,872.08
  4. Step 4: Simplify right side
    25,641.36x = 302,820,024.61
  5. Step 5: Solve for x
    x = 302,820,024.61/25,641.36
  6. Step 6: Final answer
    x = 11,809.83

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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.