Home / 30,318.44-41,838.78-16,889.62

Finding the Fourth Proportional to 30,318.44, 41,838.78 and 16,889.62

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Solution

The fourth proportional to 30,318.44, 41,838.78 and 16,889.62 is: 23,307.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,318.44 : 41,838.78 = 16,889.62 : x
  2. Step 2: Convert to fraction form
    30,318.44/41,838.78 = 16,889.62/x
  3. Step 3: Cross multiply
    30,318.44x = 41,838.78 × 16,889.62
  4. Step 4: Simplify right side
    30,318.44x = 706,641,095.46
  5. Step 5: Solve for x
    x = 706,641,095.46/30,318.44
  6. Step 6: Final answer
    x = 23,307.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.