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Finding the Fourth Proportional to 25,536.40, 38,308.20 and 8,004.40

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Solution

The fourth proportional to 25,536.40, 38,308.20 and 8,004.40 is: 12,007.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,536.40 : 38,308.20 = 8,004.40 : x
  2. Step 2: Convert to fraction form
    25,536.40/38,308.20 = 8,004.40/x
  3. Step 3: Cross multiply
    25,536.40x = 38,308.20 × 8,004.40
  4. Step 4: Simplify right side
    25,536.40x = 306,634,156.08
  5. Step 5: Solve for x
    x = 306,634,156.08/25,536.40
  6. Step 6: Final answer
    x = 12,007.73

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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.