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Finding the Fourth Proportional to 39,245.84, 58,870.80 and 12,952.64

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Solution

The fourth proportional to 39,245.84, 58,870.80 and 12,952.64 is: 19,429.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,245.84 : 58,870.80 = 12,952.64 : x
  2. Step 2: Convert to fraction form
    39,245.84/58,870.80 = 12,952.64/x
  3. Step 3: Cross multiply
    39,245.84x = 58,870.80 × 12,952.64
  4. Step 4: Simplify right side
    39,245.84x = 762,531,984.56
  5. Step 5: Solve for x
    x = 762,531,984.56/39,245.84
  6. Step 6: Final answer
    x = 19,429.62

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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.