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Finding the Fourth Proportional to 28,604.03, 42,902.28 and 7,545.72

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Solution

The fourth proportional to 28,604.03, 42,902.28 and 7,545.72 is: 11,317.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,604.03 : 42,902.28 = 7,545.72 : x
  2. Step 2: Convert to fraction form
    28,604.03/42,902.28 = 7,545.72/x
  3. Step 3: Cross multiply
    28,604.03x = 42,902.28 × 7,545.72
  4. Step 4: Simplify right side
    28,604.03x = 323,728,573.38
  5. Step 5: Solve for x
    x = 323,728,573.38/28,604.03
  6. Step 6: Final answer
    x = 11,317.59

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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.