Home / 13,381.50-20,071.46-4,021.32

Finding the Fourth Proportional to 13,381.50, 20,071.46 and 4,021.32

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Solution

The fourth proportional to 13,381.50, 20,071.46 and 4,021.32 is: 6,031.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,381.50 : 20,071.46 = 4,021.32 : x
  2. Step 2: Convert to fraction form
    13,381.50/20,071.46 = 4,021.32/x
  3. Step 3: Cross multiply
    13,381.50x = 20,071.46 × 4,021.32
  4. Step 4: Simplify right side
    13,381.50x = 80,713,673.22
  5. Step 5: Solve for x
    x = 80,713,673.22/13,381.50
  6. Step 6: Final answer
    x = 6,031.74

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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.