Home / 43,274.40-64,935.90-18,310.20

Finding the Fourth Proportional to 43,274.40, 64,935.90 and 18,310.20

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Solution

The fourth proportional to 43,274.40, 64,935.90 and 18,310.20 is: 27,475.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,274.40 : 64,935.90 = 18,310.20 : x
  2. Step 2: Convert to fraction form
    43,274.40/64,935.90 = 18,310.20/x
  3. Step 3: Cross multiply
    43,274.40x = 64,935.90 × 18,310.20
  4. Step 4: Simplify right side
    43,274.40x = 1,188,989,316.18
  5. Step 5: Solve for x
    x = 1,188,989,316.18/43,274.40
  6. Step 6: Final answer
    x = 27,475.58

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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.