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Finding the Fourth Proportional to 30,943.64, 46,409.58 and 8,751.66

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Solution

The fourth proportional to 30,943.64, 46,409.58 and 8,751.66 is: 13,125.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,943.64 : 46,409.58 = 8,751.66 : x
  2. Step 2: Convert to fraction form
    30,943.64/46,409.58 = 8,751.66/x
  3. Step 3: Cross multiply
    30,943.64x = 46,409.58 × 8,751.66
  4. Step 4: Simplify right side
    30,943.64x = 406,160,864.90
  5. Step 5: Solve for x
    x = 406,160,864.90/30,943.64
  6. Step 6: Final answer
    x = 13,125.83

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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.