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Finding the Fourth Proportional to 29,640.70, 40,902.63 and 16,209.34

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Solution

The fourth proportional to 29,640.70, 40,902.63 and 16,209.34 is: 22,368.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,640.70 : 40,902.63 = 16,209.34 : x
  2. Step 2: Convert to fraction form
    29,640.70/40,902.63 = 16,209.34/x
  3. Step 3: Cross multiply
    29,640.70x = 40,902.63 × 16,209.34
  4. Step 4: Simplify right side
    29,640.70x = 663,004,636.56
  5. Step 5: Solve for x
    x = 663,004,636.56/29,640.70
  6. Step 6: Final answer
    x = 22,368.05

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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.