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Finding the Fourth Proportional to 34,840.40, 52,245.48 and 12,646.40

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Solution

The fourth proportional to 34,840.40, 52,245.48 and 12,646.40 is: 18,964.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,840.40 : 52,245.48 = 12,646.40 : x
  2. Step 2: Convert to fraction form
    34,840.40/52,245.48 = 12,646.40/x
  3. Step 3: Cross multiply
    34,840.40x = 52,245.48 × 12,646.40
  4. Step 4: Simplify right side
    34,840.40x = 660,717,238.27
  5. Step 5: Solve for x
    x = 660,717,238.27/34,840.40
  6. Step 6: Final answer
    x = 18,964.11

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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.