Home / 39,515.73-59,221.32-20,757.42

Finding the Fourth Proportional to 39,515.73, 59,221.32 and 20,757.42

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Solution

The fourth proportional to 39,515.73, 59,221.32 and 20,757.42 is: 31,108.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,515.73 : 59,221.32 = 20,757.42 : x
  2. Step 2: Convert to fraction form
    39,515.73/59,221.32 = 20,757.42/x
  3. Step 3: Cross multiply
    39,515.73x = 59,221.32 × 20,757.42
  4. Step 4: Simplify right side
    39,515.73x = 1,229,281,812.19
  5. Step 5: Solve for x
    x = 1,229,281,812.19/39,515.73
  6. Step 6: Final answer
    x = 31,108.67

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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.