Home / 25,429.21-38,131.51-8,783.40

Finding the Fourth Proportional to 25,429.21, 38,131.51 and 8,783.40

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Solution

The fourth proportional to 25,429.21, 38,131.51 and 8,783.40 is: 13,170.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,429.21 : 38,131.51 = 8,783.40 : x
  2. Step 2: Convert to fraction form
    25,429.21/38,131.51 = 8,783.40/x
  3. Step 3: Cross multiply
    25,429.21x = 38,131.51 × 8,783.40
  4. Step 4: Simplify right side
    25,429.21x = 334,924,442.44
  5. Step 5: Solve for x
    x = 334,924,442.44/25,429.21
  6. Step 6: Final answer
    x = 13,170.86

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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.