Home / 25,317.96-37,981.26-7,787.40

Finding the Fourth Proportional to 25,317.96, 37,981.26 and 7,787.40

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Solution

The fourth proportional to 25,317.96, 37,981.26 and 7,787.40 is: 11,682.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,317.96 : 37,981.26 = 7,787.40 : x
  2. Step 2: Convert to fraction form
    25,317.96/37,981.26 = 7,787.40/x
  3. Step 3: Cross multiply
    25,317.96x = 37,981.26 × 7,787.40
  4. Step 4: Simplify right side
    25,317.96x = 295,775,264.12
  5. Step 5: Solve for x
    x = 295,775,264.12/25,317.96
  6. Step 6: Final answer
    x = 11,682.43

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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.