Home / 20,701.95-28,566.31-11,747.67

Finding the Fourth Proportional to 20,701.95, 28,566.31 and 11,747.67

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Solution

The fourth proportional to 20,701.95, 28,566.31 and 11,747.67 is: 16,210.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,701.95 : 28,566.31 = 11,747.67 : x
  2. Step 2: Convert to fraction form
    20,701.95/28,566.31 = 11,747.67/x
  3. Step 3: Cross multiply
    20,701.95x = 28,566.31 × 11,747.67
  4. Step 4: Simplify right side
    20,701.95x = 335,587,583.00
  5. Step 5: Solve for x
    x = 335,587,583.00/20,701.95
  6. Step 6: Final answer
    x = 16,210.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.