Home / 28,404.85-39,195.48-16,465.72

Finding the Fourth Proportional to 28,404.85, 39,195.48 and 16,465.72

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Solution

The fourth proportional to 28,404.85, 39,195.48 and 16,465.72 is: 22,720.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,404.85 : 39,195.48 = 16,465.72 : x
  2. Step 2: Convert to fraction form
    28,404.85/39,195.48 = 16,465.72/x
  3. Step 3: Cross multiply
    28,404.85x = 39,195.48 × 16,465.72
  4. Step 4: Simplify right side
    28,404.85x = 645,381,798.95
  5. Step 5: Solve for x
    x = 645,381,798.95/28,404.85
  6. Step 6: Final answer
    x = 22,720.83

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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.