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Finding the Fourth Proportional to 30,358.40, 41,894.40 and 16,929.82

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Solution

The fourth proportional to 30,358.40, 41,894.40 and 16,929.82 is: 23,363.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,358.40 : 41,894.40 = 16,929.82 : x
  2. Step 2: Convert to fraction form
    30,358.40/41,894.40 = 16,929.82/x
  3. Step 3: Cross multiply
    30,358.40x = 41,894.40 × 16,929.82
  4. Step 4: Simplify right side
    30,358.40x = 709,264,651.01
  5. Step 5: Solve for x
    x = 709,264,651.01/30,358.40
  6. Step 6: Final answer
    x = 23,363.04

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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.