Home / 28,911.07-39,897.12-16,164.25

Finding the Fourth Proportional to 28,911.07, 39,897.12 and 16,164.25

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Solution

The fourth proportional to 28,911.07, 39,897.12 and 16,164.25 is: 22,306.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,911.07 : 39,897.12 = 16,164.25 : x
  2. Step 2: Convert to fraction form
    28,911.07/39,897.12 = 16,164.25/x
  3. Step 3: Cross multiply
    28,911.07x = 39,897.12 × 16,164.25
  4. Step 4: Simplify right side
    28,911.07x = 644,907,021.96
  5. Step 5: Solve for x
    x = 644,907,021.96/28,911.07
  6. Step 6: Final answer
    x = 22,306.58

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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.