Home / 25,673.56-38,515.20-8,148.40

Finding the Fourth Proportional to 25,673.56, 38,515.20 and 8,148.40

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Solution

The fourth proportional to 25,673.56, 38,515.20 and 8,148.40 is: 12,224.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,673.56 : 38,515.20 = 8,148.40 : x
  2. Step 2: Convert to fraction form
    25,673.56/38,515.20 = 8,148.40/x
  3. Step 3: Cross multiply
    25,673.56x = 38,515.20 × 8,148.40
  4. Step 4: Simplify right side
    25,673.56x = 313,837,255.68
  5. Step 5: Solve for x
    x = 313,837,255.68/25,673.56
  6. Step 6: Final answer
    x = 12,224.14

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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.