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Finding the Fourth Proportional to 26,903.20, 40,369.20 and 11,322.40

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Solution

The fourth proportional to 26,903.20, 40,369.20 and 11,322.40 is: 16,989.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,903.20 : 40,369.20 = 11,322.40 : x
  2. Step 2: Convert to fraction form
    26,903.20/40,369.20 = 11,322.40/x
  3. Step 3: Cross multiply
    26,903.20x = 40,369.20 × 11,322.40
  4. Step 4: Simplify right side
    26,903.20x = 457,076,230.08
  5. Step 5: Solve for x
    x = 457,076,230.08/26,903.20
  6. Step 6: Final answer
    x = 16,989.66

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1.5x scale

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.