Home / 20,846.40-31,269.60-11,004.90

Finding the Fourth Proportional to 20,846.40, 31,269.60 and 11,004.90

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Solution

The fourth proportional to 20,846.40, 31,269.60 and 11,004.90 is: 16,507.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,846.40 : 31,269.60 = 11,004.90 : x
  2. Step 2: Convert to fraction form
    20,846.40/31,269.60 = 11,004.90/x
  3. Step 3: Cross multiply
    20,846.40x = 31,269.60 × 11,004.90
  4. Step 4: Simplify right side
    20,846.40x = 344,118,821.04
  5. Step 5: Solve for x
    x = 344,118,821.04/20,846.40
  6. Step 6: Final answer
    x = 16,507.35

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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.