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Finding the Fourth Proportional to 40,308, 55,626.06 and 22,158.48

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Solution

The fourth proportional to 40,308, 55,626.06 and 22,158.48 is: 30,579.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,308 : 55,626.06 = 22,158.48 : x
  2. Step 2: Convert to fraction form
    40,308/55,626.06 = 22,158.48/x
  3. Step 3: Cross multiply
    40,308x = 55,626.06 × 22,158.48
  4. Step 4: Simplify right side
    40,308x = 1,232,588,937.99
  5. Step 5: Solve for x
    x = 1,232,588,937.99/40,308
  6. Step 6: Final answer
    x = 30,579.26

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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.