Home / 34,290.81-51,438.50-13,231.12

Finding the Fourth Proportional to 34,290.81, 51,438.50 and 13,231.12

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Solution

The fourth proportional to 34,290.81, 51,438.50 and 13,231.12 is: 19,847.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,290.81 : 51,438.50 = 13,231.12 : x
  2. Step 2: Convert to fraction form
    34,290.81/51,438.50 = 13,231.12/x
  3. Step 3: Cross multiply
    34,290.81x = 51,438.50 × 13,231.12
  4. Step 4: Simplify right side
    34,290.81x = 680,588,820.98
  5. Step 5: Solve for x
    x = 680,588,820.98/34,290.81
  6. Step 6: Final answer
    x = 19,847.56

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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.