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Finding the Fourth Proportional to 29,477.40, 44,118.90 and 20,729.40

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Solution

The fourth proportional to 29,477.40, 44,118.90 and 20,729.40 is: 31,025.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,477.40 : 44,118.90 = 20,729.40 : x
  2. Step 2: Convert to fraction form
    29,477.40/44,118.90 = 20,729.40/x
  3. Step 3: Cross multiply
    29,477.40x = 44,118.90 × 20,729.40
  4. Step 4: Simplify right side
    29,477.40x = 914,558,325.66
  5. Step 5: Solve for x
    x = 914,558,325.66/29,477.40
  6. Step 6: Final answer
    x = 31,025.75

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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.