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Finding the Fourth Proportional to 30,959.42, 46,400.04 and 16,890.12

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Solution

The fourth proportional to 30,959.42, 46,400.04 and 16,890.12 is: 25,313.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,959.42 : 46,400.04 = 16,890.12 : x
  2. Step 2: Convert to fraction form
    30,959.42/46,400.04 = 16,890.12/x
  3. Step 3: Cross multiply
    30,959.42x = 46,400.04 × 16,890.12
  4. Step 4: Simplify right side
    30,959.42x = 783,702,243.60
  5. Step 5: Solve for x
    x = 783,702,243.60/30,959.42
  6. Step 6: Final answer
    x = 25,313.86

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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.