Home / 43,611.82-65,417.79-12,447.07

Finding the Fourth Proportional to 43,611.82, 65,417.79 and 12,447.07

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Solution

The fourth proportional to 43,611.82, 65,417.79 and 12,447.07 is: 18,670.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,611.82 : 65,417.79 = 12,447.07 : x
  2. Step 2: Convert to fraction form
    43,611.82/65,417.79 = 12,447.07/x
  3. Step 3: Cross multiply
    43,611.82x = 65,417.79 × 12,447.07
  4. Step 4: Simplify right side
    43,611.82x = 814,259,484.29
  5. Step 5: Solve for x
    x = 814,259,484.29/43,611.82
  6. Step 6: Final answer
    x = 18,670.62

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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.