Home / 20,986.25-31,482.80-6,196.67

Finding the Fourth Proportional to 20,986.25, 31,482.80 and 6,196.67

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Solution

The fourth proportional to 20,986.25, 31,482.80 and 6,196.67 is: 9,296.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,986.25 : 31,482.80 = 6,196.67 : x
  2. Step 2: Convert to fraction form
    20,986.25/31,482.80 = 6,196.67/x
  3. Step 3: Cross multiply
    20,986.25x = 31,482.80 × 6,196.67
  4. Step 4: Simplify right side
    20,986.25x = 195,088,411.96
  5. Step 5: Solve for x
    x = 195,088,411.96/20,986.25
  6. Step 6: Final answer
    x = 9,296.01

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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.