Home / 29,421.72-40,611.26-18,811.39

Finding the Fourth Proportional to 29,421.72, 40,611.26 and 18,811.39

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Solution

The fourth proportional to 29,421.72, 40,611.26 and 18,811.39 is: 25,965.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,421.72 : 40,611.26 = 18,811.39 : x
  2. Step 2: Convert to fraction form
    29,421.72/40,611.26 = 18,811.39/x
  3. Step 3: Cross multiply
    29,421.72x = 40,611.26 × 18,811.39
  4. Step 4: Simplify right side
    29,421.72x = 763,954,156.19
  5. Step 5: Solve for x
    x = 763,954,156.19/29,421.72
  6. Step 6: Final answer
    x = 25,965.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.