Home / 39,571.08-54,608.73-21,665.76

Finding the Fourth Proportional to 39,571.08, 54,608.73 and 21,665.76

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Solution

The fourth proportional to 39,571.08, 54,608.73 and 21,665.76 is: 29,899.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,571.08 : 54,608.73 = 21,665.76 : x
  2. Step 2: Convert to fraction form
    39,571.08/54,608.73 = 21,665.76/x
  3. Step 3: Cross multiply
    39,571.08x = 54,608.73 × 21,665.76
  4. Step 4: Simplify right side
    39,571.08x = 1,183,139,638.08
  5. Step 5: Solve for x
    x = 1,183,139,638.08/39,571.08
  6. Step 6: Final answer
    x = 29,899.10

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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.