Home / 20,346.40-30,519.60-16,847.20

Finding the Fourth Proportional to 20,346.40, 30,519.60 and 16,847.20

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Solution

The fourth proportional to 20,346.40, 30,519.60 and 16,847.20 is: 25,270.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,346.40 : 30,519.60 = 16,847.20 : x
  2. Step 2: Convert to fraction form
    20,346.40/30,519.60 = 16,847.20/x
  3. Step 3: Cross multiply
    20,346.40x = 30,519.60 × 16,847.20
  4. Step 4: Simplify right side
    20,346.40x = 514,169,805.12
  5. Step 5: Solve for x
    x = 514,169,805.12/20,346.40
  6. Step 6: Final answer
    x = 25,270.80

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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.