Home / 15,871.98-23,668.11-15,729.69

Finding the Fourth Proportional to 15,871.98, 23,668.11 and 15,729.69

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Solution

The fourth proportional to 15,871.98, 23,668.11 and 15,729.69 is: 23,455.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,871.98 : 23,668.11 = 15,729.69 : x
  2. Step 2: Convert to fraction form
    15,871.98/23,668.11 = 15,729.69/x
  3. Step 3: Cross multiply
    15,871.98x = 23,668.11 × 15,729.69
  4. Step 4: Simplify right side
    15,871.98x = 372,292,121.94
  5. Step 5: Solve for x
    x = 372,292,121.94/15,871.98
  6. Step 6: Final answer
    x = 23,455.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.