Home / 28,317.60-39,074.40-16,381.44

Finding the Fourth Proportional to 28,317.60, 39,074.40 and 16,381.44

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Solution

The fourth proportional to 28,317.60, 39,074.40 and 16,381.44 is: 22,604.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,317.60 : 39,074.40 = 16,381.44 : x
  2. Step 2: Convert to fraction form
    28,317.60/39,074.40 = 16,381.44/x
  3. Step 3: Cross multiply
    28,317.60x = 39,074.40 × 16,381.44
  4. Step 4: Simplify right side
    28,317.60x = 640,094,939.14
  5. Step 5: Solve for x
    x = 640,094,939.14/28,317.60
  6. Step 6: Final answer
    x = 22,604.14

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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.