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Finding the Fourth Proportional to 30,728.71, 46,110.99 and 12,958.27

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Solution

The fourth proportional to 30,728.71, 46,110.99 and 12,958.27 is: 19,444.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,728.71 : 46,110.99 = 12,958.27 : x
  2. Step 2: Convert to fraction form
    30,728.71/46,110.99 = 12,958.27/x
  3. Step 3: Cross multiply
    30,728.71x = 46,110.99 × 12,958.27
  4. Step 4: Simplify right side
    30,728.71x = 597,518,658.39
  5. Step 5: Solve for x
    x = 597,518,658.39/30,728.71
  6. Step 6: Final answer
    x = 19,444.96

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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.