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Finding the Fourth Proportional to 39,750, 59,653.08 and 18,975.12

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Solution

The fourth proportional to 39,750, 59,653.08 and 18,975.12 is: 28,476.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,750 : 59,653.08 = 18,975.12 : x
  2. Step 2: Convert to fraction form
    39,750/59,653.08 = 18,975.12/x
  3. Step 3: Cross multiply
    39,750x = 59,653.08 × 18,975.12
  4. Step 4: Simplify right side
    39,750x = 1,131,924,351.37
  5. Step 5: Solve for x
    x = 1,131,924,351.37/39,750
  6. Step 6: Final answer
    x = 28,476.08

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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.