Home / 26,281.75-39,422.64-7,813.75

Finding the Fourth Proportional to 26,281.75, 39,422.64 and 7,813.75

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Solution

The fourth proportional to 26,281.75, 39,422.64 and 7,813.75 is: 11,720.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,281.75 : 39,422.64 = 7,813.75 : x
  2. Step 2: Convert to fraction form
    26,281.75/39,422.64 = 7,813.75/x
  3. Step 3: Cross multiply
    26,281.75x = 39,422.64 × 7,813.75
  4. Step 4: Simplify right side
    26,281.75x = 308,038,653.30
  5. Step 5: Solve for x
    x = 308,038,653.30/26,281.75
  6. Step 6: Final answer
    x = 11,720.63

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1.5x scale

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.