Home / 43,521.84-65,290.74-15,438.54

Finding the Fourth Proportional to 43,521.84, 65,290.74 and 15,438.54

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Solution

The fourth proportional to 43,521.84, 65,290.74 and 15,438.54 is: 23,160.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,521.84 : 65,290.74 = 15,438.54 : x
  2. Step 2: Convert to fraction form
    43,521.84/65,290.74 = 15,438.54/x
  3. Step 3: Cross multiply
    43,521.84x = 65,290.74 × 15,438.54
  4. Step 4: Simplify right side
    43,521.84x = 1,007,993,701.12
  5. Step 5: Solve for x
    x = 1,007,993,701.12/43,521.84
  6. Step 6: Final answer
    x = 23,160.64

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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.