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Finding the Fourth Proportional to 39,699.84, 59,523.84 and 15,991.68

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Solution

The fourth proportional to 39,699.84, 59,523.84 and 15,991.68 is: 23,977.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,699.84 : 59,523.84 = 15,991.68 : x
  2. Step 2: Convert to fraction form
    39,699.84/59,523.84 = 15,991.68/x
  3. Step 3: Cross multiply
    39,699.84x = 59,523.84 × 15,991.68
  4. Step 4: Simplify right side
    39,699.84x = 951,886,201.65
  5. Step 5: Solve for x
    x = 951,886,201.65/39,699.84
  6. Step 6: Final answer
    x = 23,977.08

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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.