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Finding the Fourth Proportional to 34,677, 51,990.44 and 20,603.66

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Solution

The fourth proportional to 34,677, 51,990.44 and 20,603.66 is: 30,890.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,677 : 51,990.44 = 20,603.66 : x
  2. Step 2: Convert to fraction form
    34,677/51,990.44 = 20,603.66/x
  3. Step 3: Cross multiply
    34,677x = 51,990.44 × 20,603.66
  4. Step 4: Simplify right side
    34,677x = 1,071,193,349.01
  5. Step 5: Solve for x
    x = 1,071,193,349.01/34,677
  6. Step 6: Final answer
    x = 30,890.60

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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.