Home / 28,745.31-39,668.01-16,000.56

Finding the Fourth Proportional to 28,745.31, 39,668.01 and 16,000.56

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Solution

The fourth proportional to 28,745.31, 39,668.01 and 16,000.56 is: 22,080.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,745.31 : 39,668.01 = 16,000.56 : x
  2. Step 2: Convert to fraction form
    28,745.31/39,668.01 = 16,000.56/x
  3. Step 3: Cross multiply
    28,745.31x = 39,668.01 × 16,000.56
  4. Step 4: Simplify right side
    28,745.31x = 634,710,374.09
  5. Step 5: Solve for x
    x = 634,710,374.09/28,745.31
  6. Step 6: Final answer
    x = 22,080.48

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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.