Home / 20,348.01-28,090.46-12,798.54

Finding the Fourth Proportional to 20,348.01, 28,090.46 and 12,798.54

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Solution

The fourth proportional to 20,348.01, 28,090.46 and 12,798.54 is: 17,668.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,348.01 : 28,090.46 = 12,798.54 : x
  2. Step 2: Convert to fraction form
    20,348.01/28,090.46 = 12,798.54/x
  3. Step 3: Cross multiply
    20,348.01x = 28,090.46 × 12,798.54
  4. Step 4: Simplify right side
    20,348.01x = 359,516,907.92
  5. Step 5: Solve for x
    x = 359,516,907.92/20,348.01
  6. Step 6: Final answer
    x = 17,668.41

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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.