Home / 31,858.20-43,969.74-18,437.67

Finding the Fourth Proportional to 31,858.20, 43,969.74 and 18,437.67

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Solution

The fourth proportional to 31,858.20, 43,969.74 and 18,437.67 is: 25,447.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,858.20 : 43,969.74 = 18,437.67 : x
  2. Step 2: Convert to fraction form
    31,858.20/43,969.74 = 18,437.67/x
  3. Step 3: Cross multiply
    31,858.20x = 43,969.74 × 18,437.67
  4. Step 4: Simplify right side
    31,858.20x = 810,699,556.11
  5. Step 5: Solve for x
    x = 810,699,556.11/31,858.20
  6. Step 6: Final answer
    x = 25,447.12

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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.