Home / 20,946.38-28,903.58-11,993.36

Finding the Fourth Proportional to 20,946.38, 28,903.58 and 11,993.36

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Solution

The fourth proportional to 20,946.38, 28,903.58 and 11,993.36 is: 16,549.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,946.38 : 28,903.58 = 11,993.36 : x
  2. Step 2: Convert to fraction form
    20,946.38/28,903.58 = 11,993.36/x
  3. Step 3: Cross multiply
    20,946.38x = 28,903.58 × 11,993.36
  4. Step 4: Simplify right side
    20,946.38x = 346,650,835.74
  5. Step 5: Solve for x
    x = 346,650,835.74/20,946.38
  6. Step 6: Final answer
    x = 16,549.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.