Home / 20,568.30-30,852.45-10,200.30

Finding the Fourth Proportional to 20,568.30, 30,852.45 and 10,200.30

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Solution

The fourth proportional to 20,568.30, 30,852.45 and 10,200.30 is: 15,300.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,568.30 : 30,852.45 = 10,200.30 : x
  2. Step 2: Convert to fraction form
    20,568.30/30,852.45 = 10,200.30/x
  3. Step 3: Cross multiply
    20,568.30x = 30,852.45 × 10,200.30
  4. Step 4: Simplify right side
    20,568.30x = 314,704,245.74
  5. Step 5: Solve for x
    x = 314,704,245.74/20,568.30
  6. Step 6: Final answer
    x = 15,300.45

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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.