Home / 20,568.23-30,852.34-4,985.86

Finding the Fourth Proportional to 20,568.23, 30,852.34 and 4,985.86

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Solution

The fourth proportional to 20,568.23, 30,852.34 and 4,985.86 is: 7,478.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,568.23 : 30,852.34 = 4,985.86 : x
  2. Step 2: Convert to fraction form
    20,568.23/30,852.34 = 4,985.86/x
  3. Step 3: Cross multiply
    20,568.23x = 30,852.34 × 4,985.86
  4. Step 4: Simplify right side
    20,568.23x = 153,825,306.12
  5. Step 5: Solve for x
    x = 153,825,306.12/20,568.23
  6. Step 6: Final answer
    x = 7,478.78

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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.