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Finding the Fourth Proportional to 26,688.45, 40,037 and 8,216.13

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Solution

The fourth proportional to 26,688.45, 40,037 and 8,216.13 is: 12,325.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,688.45 : 40,037 = 8,216.13 : x
  2. Step 2: Convert to fraction form
    26,688.45/40,037 = 8,216.13/x
  3. Step 3: Cross multiply
    26,688.45x = 40,037 × 8,216.13
  4. Step 4: Simplify right side
    26,688.45x = 328,949,196.81
  5. Step 5: Solve for x
    x = 328,949,196.81/26,688.45
  6. Step 6: Final answer
    x = 12,325.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.