Home / 19,960.51-29,940.90-9,540.67

Finding the Fourth Proportional to 19,960.51, 29,940.90 and 9,540.67

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Solution

The fourth proportional to 19,960.51, 29,940.90 and 9,540.67 is: 14,311.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,960.51 : 29,940.90 = 9,540.67 : x
  2. Step 2: Convert to fraction form
    19,960.51/29,940.90 = 9,540.67/x
  3. Step 3: Cross multiply
    19,960.51x = 29,940.90 × 9,540.67
  4. Step 4: Simplify right side
    19,960.51x = 285,656,246.40
  5. Step 5: Solve for x
    x = 285,656,246.40/19,960.51
  6. Step 6: Final answer
    x = 14,311.07

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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.