Home / 18,169.26-25,064.43-15,775.98

Finding the Fourth Proportional to 18,169.26, 25,064.43 and 15,775.98

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Solution

The fourth proportional to 18,169.26, 25,064.43 and 15,775.98 is: 21,762.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,169.26 : 25,064.43 = 15,775.98 : x
  2. Step 2: Convert to fraction form
    18,169.26/25,064.43 = 15,775.98/x
  3. Step 3: Cross multiply
    18,169.26x = 25,064.43 × 15,775.98
  4. Step 4: Simplify right side
    18,169.26x = 395,415,946.39
  5. Step 5: Solve for x
    x = 395,415,946.39/18,169.26
  6. Step 6: Final answer
    x = 21,762.91

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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.