Home / 16,911.01-23,343.74-15,139.54

Finding the Fourth Proportional to 16,911.01, 23,343.74 and 15,139.54

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Solution

The fourth proportional to 16,911.01, 23,343.74 and 15,139.54 is: 20,898.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,911.01 : 23,343.74 = 15,139.54 : x
  2. Step 2: Convert to fraction form
    16,911.01/23,343.74 = 15,139.54/x
  3. Step 3: Cross multiply
    16,911.01x = 23,343.74 × 15,139.54
  4. Step 4: Simplify right side
    16,911.01x = 353,413,485.48
  5. Step 5: Solve for x
    x = 353,413,485.48/16,911.01
  6. Step 6: Final answer
    x = 20,898.43

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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.