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Finding the Fourth Proportional to 36,509.40, 54,756.90 and 17,789.40

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Solution

The fourth proportional to 36,509.40, 54,756.90 and 17,789.40 is: 26,680.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,509.40 : 54,756.90 = 17,789.40 : x
  2. Step 2: Convert to fraction form
    36,509.40/54,756.90 = 17,789.40/x
  3. Step 3: Cross multiply
    36,509.40x = 54,756.90 × 17,789.40
  4. Step 4: Simplify right side
    36,509.40x = 974,092,396.86
  5. Step 5: Solve for x
    x = 974,092,396.86/36,509.40
  6. Step 6: Final answer
    x = 26,680.59

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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.