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Finding the Fourth Proportional to 34,245.40, 51,312.90 and 19,410.20

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Solution

The fourth proportional to 34,245.40, 51,312.90 and 19,410.20 is: 29,084.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,245.40 : 51,312.90 = 19,410.20 : x
  2. Step 2: Convert to fraction form
    34,245.40/51,312.90 = 19,410.20/x
  3. Step 3: Cross multiply
    34,245.40x = 51,312.90 × 19,410.20
  4. Step 4: Simplify right side
    34,245.40x = 995,993,651.58
  5. Step 5: Solve for x
    x = 995,993,651.58/34,245.40
  6. Step 6: Final answer
    x = 29,084.01

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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.