Home / 25,170.35-37,756.48-7,639.72

Finding the Fourth Proportional to 25,170.35, 37,756.48 and 7,639.72

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Solution

The fourth proportional to 25,170.35, 37,756.48 and 7,639.72 is: 11,459.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,170.35 : 37,756.48 = 7,639.72 : x
  2. Step 2: Convert to fraction form
    25,170.35/37,756.48 = 7,639.72/x
  3. Step 3: Cross multiply
    25,170.35x = 37,756.48 × 7,639.72
  4. Step 4: Simplify right side
    25,170.35x = 288,448,836.22
  5. Step 5: Solve for x
    x = 288,448,836.22/25,170.35
  6. Step 6: Final answer
    x = 11,459.87

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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.