Home / 21,049.52-31,577.37-7,539.67

Finding the Fourth Proportional to 21,049.52, 31,577.37 and 7,539.67

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Solution

The fourth proportional to 21,049.52, 31,577.37 and 7,539.67 is: 11,310.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,049.52 : 31,577.37 = 7,539.67 : x
  2. Step 2: Convert to fraction form
    21,049.52/31,577.37 = 7,539.67/x
  3. Step 3: Cross multiply
    21,049.52x = 31,577.37 × 7,539.67
  4. Step 4: Simplify right side
    21,049.52x = 238,082,804.05
  5. Step 5: Solve for x
    x = 238,082,804.05/21,049.52
  6. Step 6: Final answer
    x = 11,310.60

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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.