Home / 20,118.12-30,177.18-8,271.84

Finding the Fourth Proportional to 20,118.12, 30,177.18 and 8,271.84

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Solution

The fourth proportional to 20,118.12, 30,177.18 and 8,271.84 is: 12,407.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,118.12 : 30,177.18 = 8,271.84 : x
  2. Step 2: Convert to fraction form
    20,118.12/30,177.18 = 8,271.84/x
  3. Step 3: Cross multiply
    20,118.12x = 30,177.18 × 8,271.84
  4. Step 4: Simplify right side
    20,118.12x = 249,620,804.61
  5. Step 5: Solve for x
    x = 249,620,804.61/20,118.12
  6. Step 6: Final answer
    x = 12,407.76

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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.