Home / 31,738.57-43,798.89-18,309.67

Finding the Fourth Proportional to 31,738.57, 43,798.89 and 18,309.67

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Solution

The fourth proportional to 31,738.57, 43,798.89 and 18,309.67 is: 25,267.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,738.57 : 43,798.89 = 18,309.67 : x
  2. Step 2: Convert to fraction form
    31,738.57/43,798.89 = 18,309.67/x
  3. Step 3: Cross multiply
    31,738.57x = 43,798.89 × 18,309.67
  4. Step 4: Simplify right side
    31,738.57x = 801,943,222.27
  5. Step 5: Solve for x
    x = 801,943,222.27/31,738.57
  6. Step 6: Final answer
    x = 25,267.15

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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.