Home / 40,288.64-60,432.96-12,586.64

Finding the Fourth Proportional to 40,288.64, 60,432.96 and 12,586.64

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Solution

The fourth proportional to 40,288.64, 60,432.96 and 12,586.64 is: 18,879.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,288.64 : 60,432.96 = 12,586.64 : x
  2. Step 2: Convert to fraction form
    40,288.64/60,432.96 = 12,586.64/x
  3. Step 3: Cross multiply
    40,288.64x = 60,432.96 × 12,586.64
  4. Step 4: Simplify right side
    40,288.64x = 760,647,961.22
  5. Step 5: Solve for x
    x = 760,647,961.22/40,288.64
  6. Step 6: Final answer
    x = 18,879.96

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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.