Home / 25,615.03-38,421.21-7,845.70

Finding the Fourth Proportional to 25,615.03, 38,421.21 and 7,845.70

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Solution

The fourth proportional to 25,615.03, 38,421.21 and 7,845.70 is: 11,768.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,615.03 : 38,421.21 = 7,845.70 : x
  2. Step 2: Convert to fraction form
    25,615.03/38,421.21 = 7,845.70/x
  3. Step 3: Cross multiply
    25,615.03x = 38,421.21 × 7,845.70
  4. Step 4: Simplify right side
    25,615.03x = 301,441,287.30
  5. Step 5: Solve for x
    x = 301,441,287.30/25,615.03
  6. Step 6: Final answer
    x = 11,768.14

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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.