Home / 13,381.95-20,072.86-4,021.93

Finding the Fourth Proportional to 13,381.95, 20,072.86 and 4,021.93

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Solution

The fourth proportional to 13,381.95, 20,072.86 and 4,021.93 is: 6,032.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,381.95 : 20,072.86 = 4,021.93 : x
  2. Step 2: Convert to fraction form
    13,381.95/20,072.86 = 4,021.93/x
  3. Step 3: Cross multiply
    13,381.95x = 20,072.86 × 4,021.93
  4. Step 4: Simplify right side
    13,381.95x = 80,731,562.57
  5. Step 5: Solve for x
    x = 80,731,562.57/13,381.95
  6. Step 6: Final answer
    x = 6,032.87

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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.