Home / 25,813.75-38,697.67-9,171.58

Finding the Fourth Proportional to 25,813.75, 38,697.67 and 9,171.58

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Solution

The fourth proportional to 25,813.75, 38,697.67 and 9,171.58 is: 13,749.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,813.75 : 38,697.67 = 9,171.58 : x
  2. Step 2: Convert to fraction form
    25,813.75/38,697.67 = 9,171.58/x
  3. Step 3: Cross multiply
    25,813.75x = 38,697.67 × 9,171.58
  4. Step 4: Simplify right side
    25,813.75x = 354,918,776.22
  5. Step 5: Solve for x
    x = 354,918,776.22/25,813.75
  6. Step 6: Final answer
    x = 13,749.21

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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.