Home / 20,573.84-30,860.77-4,991.46

Finding the Fourth Proportional to 20,573.84, 30,860.77 and 4,991.46

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Solution

The fourth proportional to 20,573.84, 30,860.77 and 4,991.46 is: 7,487.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,573.84 : 30,860.77 = 4,991.46 : x
  2. Step 2: Convert to fraction form
    20,573.84/30,860.77 = 4,991.46/x
  3. Step 3: Cross multiply
    20,573.84x = 30,860.77 × 4,991.46
  4. Step 4: Simplify right side
    20,573.84x = 154,040,299.02
  5. Step 5: Solve for x
    x = 154,040,299.02/20,573.84
  6. Step 6: Final answer
    x = 7,487.19

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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.