Home / 28,268.90-39,014.18-16,170.51

Finding the Fourth Proportional to 28,268.90, 39,014.18 and 16,170.51

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Solution

The fourth proportional to 28,268.90, 39,014.18 and 16,170.51 is: 22,317.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,268.90 : 39,014.18 = 16,170.51 : x
  2. Step 2: Convert to fraction form
    28,268.90/39,014.18 = 16,170.51/x
  3. Step 3: Cross multiply
    28,268.90x = 39,014.18 × 16,170.51
  4. Step 4: Simplify right side
    28,268.90x = 630,879,106.98
  5. Step 5: Solve for x
    x = 630,879,106.98/28,268.90
  6. Step 6: Final answer
    x = 22,317.08

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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.