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Finding the Fourth Proportional to 39,477, 59,244.72 and 18,700.56

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Solution

The fourth proportional to 39,477, 59,244.72 and 18,700.56 is: 28,064.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,477 : 59,244.72 = 18,700.56 : x
  2. Step 2: Convert to fraction form
    39,477/59,244.72 = 18,700.56/x
  3. Step 3: Cross multiply
    39,477x = 59,244.72 × 18,700.56
  4. Step 4: Simplify right side
    39,477x = 1,107,909,441.04
  5. Step 5: Solve for x
    x = 1,107,909,441.04/39,477
  6. Step 6: Final answer
    x = 28,064.68

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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.