Home / 20,573.13-30,860.90-5,783.20

Finding the Fourth Proportional to 20,573.13, 30,860.90 and 5,783.20

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Solution

The fourth proportional to 20,573.13, 30,860.90 and 5,783.20 is: 8,675.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,573.13 : 30,860.90 = 5,783.20 : x
  2. Step 2: Convert to fraction form
    20,573.13/30,860.90 = 5,783.20/x
  3. Step 3: Cross multiply
    20,573.13x = 30,860.90 × 5,783.20
  4. Step 4: Simplify right side
    20,573.13x = 178,474,756.88
  5. Step 5: Solve for x
    x = 178,474,756.88/20,573.13
  6. Step 6: Final answer
    x = 8,675.14

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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.