Home / 20,271.57-30,407.05-6,231.79

Finding the Fourth Proportional to 20,271.57, 30,407.05 and 6,231.79

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Solution

The fourth proportional to 20,271.57, 30,407.05 and 6,231.79 is: 9,347.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,271.57 : 30,407.05 = 6,231.79 : x
  2. Step 2: Convert to fraction form
    20,271.57/30,407.05 = 6,231.79/x
  3. Step 3: Cross multiply
    20,271.57x = 30,407.05 × 6,231.79
  4. Step 4: Simplify right side
    20,271.57x = 189,490,189.82
  5. Step 5: Solve for x
    x = 189,490,189.82/20,271.57
  6. Step 6: Final answer
    x = 9,347.59

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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.