Home / 39,618.06-54,673.34-21,712.67

Finding the Fourth Proportional to 39,618.06, 54,673.34 and 21,712.67

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Solution

The fourth proportional to 39,618.06, 54,673.34 and 21,712.67 is: 29,963.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,618.06 : 54,673.34 = 21,712.67 : x
  2. Step 2: Convert to fraction form
    39,618.06/54,673.34 = 21,712.67/x
  3. Step 3: Cross multiply
    39,618.06x = 54,673.34 × 21,712.67
  4. Step 4: Simplify right side
    39,618.06x = 1,187,104,189.22
  5. Step 5: Solve for x
    x = 1,187,104,189.22/39,618.06
  6. Step 6: Final answer
    x = 29,963.71

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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.