Home / 20,271.96-30,343.14-11,932.20

Finding the Fourth Proportional to 20,271.96, 30,343.14 and 11,932.20

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Solution

The fourth proportional to 20,271.96, 30,343.14 and 11,932.20 is: 17,860.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,271.96 : 30,343.14 = 11,932.20 : x
  2. Step 2: Convert to fraction form
    20,271.96/30,343.14 = 11,932.20/x
  3. Step 3: Cross multiply
    20,271.96x = 30,343.14 × 11,932.20
  4. Step 4: Simplify right side
    20,271.96x = 362,060,415.11
  5. Step 5: Solve for x
    x = 362,060,415.11/20,271.96
  6. Step 6: Final answer
    x = 17,860.16

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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.