Home / 43,918.40-65,877.74-10,638.38

Finding the Fourth Proportional to 43,918.40, 65,877.74 and 10,638.38

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Solution

The fourth proportional to 43,918.40, 65,877.74 and 10,638.38 is: 15,957.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,918.40 : 65,877.74 = 10,638.38 : x
  2. Step 2: Convert to fraction form
    43,918.40/65,877.74 = 10,638.38/x
  3. Step 3: Cross multiply
    43,918.40x = 65,877.74 × 10,638.38
  4. Step 4: Simplify right side
    43,918.40x = 700,832,049.08
  5. Step 5: Solve for x
    x = 700,832,049.08/43,918.40
  6. Step 6: Final answer
    x = 15,957.60

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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.