Home / 28,926.21-39,910.86-16,987.22

Finding the Fourth Proportional to 28,926.21, 39,910.86 and 16,987.22

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Solution

The fourth proportional to 28,926.21, 39,910.86 and 16,987.22 is: 23,438.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,926.21 : 39,910.86 = 16,987.22 : x
  2. Step 2: Convert to fraction form
    28,926.21/39,910.86 = 16,987.22/x
  3. Step 3: Cross multiply
    28,926.21x = 39,910.86 × 16,987.22
  4. Step 4: Simplify right side
    28,926.21x = 677,974,359.65
  5. Step 5: Solve for x
    x = 677,974,359.65/28,926.21
  6. Step 6: Final answer
    x = 23,438.06

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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.