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Finding the Fourth Proportional to 37,659.60, 56,487.60 and 12,697.20

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Solution

The fourth proportional to 37,659.60, 56,487.60 and 12,697.20 is: 19,045.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,659.60 : 56,487.60 = 12,697.20 : x
  2. Step 2: Convert to fraction form
    37,659.60/56,487.60 = 12,697.20/x
  3. Step 3: Cross multiply
    37,659.60x = 56,487.60 × 12,697.20
  4. Step 4: Simplify right side
    37,659.60x = 717,234,354.72
  5. Step 5: Solve for x
    x = 717,234,354.72/37,659.60
  6. Step 6: Final answer
    x = 19,045.19

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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.