Home / 28,895.76-39,879.72-16,320.42

Finding the Fourth Proportional to 28,895.76, 39,879.72 and 16,320.42

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Solution

The fourth proportional to 28,895.76, 39,879.72 and 16,320.42 is: 22,524.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,895.76 : 39,879.72 = 16,320.42 : x
  2. Step 2: Convert to fraction form
    28,895.76/39,879.72 = 16,320.42/x
  3. Step 3: Cross multiply
    28,895.76x = 39,879.72 × 16,320.42
  4. Step 4: Simplify right side
    28,895.76x = 650,853,779.88
  5. Step 5: Solve for x
    x = 650,853,779.88/28,895.76
  6. Step 6: Final answer
    x = 22,524.20

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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.