Home / 20,580.84-30,871.14-4,998.36

Finding the Fourth Proportional to 20,580.84, 30,871.14 and 4,998.36

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Solution

The fourth proportional to 20,580.84, 30,871.14 and 4,998.36 is: 7,497.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,580.84 : 30,871.14 = 4,998.36 : x
  2. Step 2: Convert to fraction form
    20,580.84/30,871.14 = 4,998.36/x
  3. Step 3: Cross multiply
    20,580.84x = 30,871.14 × 4,998.36
  4. Step 4: Simplify right side
    20,580.84x = 154,305,071.33
  5. Step 5: Solve for x
    x = 154,305,071.33/20,580.84
  6. Step 6: Final answer
    x = 7,497.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.