Home / 20,271.82-30,399.90-9,735.13

Finding the Fourth Proportional to 20,271.82, 30,399.90 and 9,735.13

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Solution

The fourth proportional to 20,271.82, 30,399.90 and 9,735.13 is: 14,598.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,271.82 : 30,399.90 = 9,735.13 : x
  2. Step 2: Convert to fraction form
    20,271.82/30,399.90 = 9,735.13/x
  3. Step 3: Cross multiply
    20,271.82x = 30,399.90 × 9,735.13
  4. Step 4: Simplify right side
    20,271.82x = 295,946,978.49
  5. Step 5: Solve for x
    x = 295,946,978.49/20,271.82
  6. Step 6: Final answer
    x = 14,598.93

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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.