Home / 20,860.08-31,267.44-7,701.36

Finding the Fourth Proportional to 20,860.08, 31,267.44 and 7,701.36

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Solution

The fourth proportional to 20,860.08, 31,267.44 and 7,701.36 is: 11,543.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,860.08 : 31,267.44 = 7,701.36 : x
  2. Step 2: Convert to fraction form
    20,860.08/31,267.44 = 7,701.36/x
  3. Step 3: Cross multiply
    20,860.08x = 31,267.44 × 7,701.36
  4. Step 4: Simplify right side
    20,860.08x = 240,801,811.72
  5. Step 5: Solve for x
    x = 240,801,811.72/20,860.08
  6. Step 6: Final answer
    x = 11,543.67

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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.