Home / 39,580.82-54,621.54-21,676.18

Finding the Fourth Proportional to 39,580.82, 54,621.54 and 21,676.18

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Solution

The fourth proportional to 39,580.82, 54,621.54 and 21,676.18 is: 29,913.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,580.82 : 54,621.54 = 21,676.18 : x
  2. Step 2: Convert to fraction form
    39,580.82/54,621.54 = 21,676.18/x
  3. Step 3: Cross multiply
    39,580.82x = 54,621.54 × 21,676.18
  4. Step 4: Simplify right side
    39,580.82x = 1,183,986,332.92
  5. Step 5: Solve for x
    x = 1,183,986,332.92/39,580.82
  6. Step 6: Final answer
    x = 29,913.13

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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.