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Finding the Fourth Proportional to 28,350, 42,526.80 and 8,630.01

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Solution

The fourth proportional to 28,350, 42,526.80 and 8,630.01 is: 12,945.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,350 : 42,526.80 = 8,630.01 : x
  2. Step 2: Convert to fraction form
    28,350/42,526.80 = 8,630.01/x
  3. Step 3: Cross multiply
    28,350x = 42,526.80 × 8,630.01
  4. Step 4: Simplify right side
    28,350x = 367,006,709.27
  5. Step 5: Solve for x
    x = 367,006,709.27/28,350
  6. Step 6: Final answer
    x = 12,945.56

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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.