Home / 20,140.03-30,223.91-6,992.40

Finding the Fourth Proportional to 20,140.03, 30,223.91 and 6,992.40

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Solution

The fourth proportional to 20,140.03, 30,223.91 and 6,992.40 is: 10,493.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,140.03 : 30,223.91 = 6,992.40 : x
  2. Step 2: Convert to fraction form
    20,140.03/30,223.91 = 6,992.40/x
  3. Step 3: Cross multiply
    20,140.03x = 30,223.91 × 6,992.40
  4. Step 4: Simplify right side
    20,140.03x = 211,337,633.32
  5. Step 5: Solve for x
    x = 211,337,633.32/20,140.03
  6. Step 6: Final answer
    x = 10,493.41

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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.