Home / 20,090.72-30,133.11-5,300.67

Finding the Fourth Proportional to 20,090.72, 30,133.11 and 5,300.67

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Solution

The fourth proportional to 20,090.72, 30,133.11 and 5,300.67 is: 7,950.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,090.72 : 30,133.11 = 5,300.67 : x
  2. Step 2: Convert to fraction form
    20,090.72/30,133.11 = 5,300.67/x
  3. Step 3: Cross multiply
    20,090.72x = 30,133.11 × 5,300.67
  4. Step 4: Simplify right side
    20,090.72x = 159,725,805.06
  5. Step 5: Solve for x
    x = 159,725,805.06/20,090.72
  6. Step 6: Final answer
    x = 7,950.23

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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.