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Finding the Fourth Proportional to 29,516, 40,730.60 and 16,087.20

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Solution

The fourth proportional to 29,516, 40,730.60 and 16,087.20 is: 22,199.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,516 : 40,730.60 = 16,087.20 : x
  2. Step 2: Convert to fraction form
    29,516/40,730.60 = 16,087.20/x
  3. Step 3: Cross multiply
    29,516x = 40,730.60 × 16,087.20
  4. Step 4: Simplify right side
    29,516x = 655,241,308.32
  5. Step 5: Solve for x
    x = 655,241,308.32/29,516
  6. Step 6: Final answer
    x = 22,199.53

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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.