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Finding the Fourth Proportional to 28,529, 42,783.01 and 9,803.72

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Solution

The fourth proportional to 28,529, 42,783.01 and 9,803.72 is: 14,701.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,529 : 42,783.01 = 9,803.72 : x
  2. Step 2: Convert to fraction form
    28,529/42,783.01 = 9,803.72/x
  3. Step 3: Cross multiply
    28,529x = 42,783.01 × 9,803.72
  4. Step 4: Simplify right side
    28,529x = 419,432,650.80
  5. Step 5: Solve for x
    x = 419,432,650.80/28,529
  6. Step 6: Final answer
    x = 14,701.98

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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.