Home / 28,441.85-42,615.38-20,081.43

Finding the Fourth Proportional to 28,441.85, 42,615.38 and 20,081.43

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Solution

The fourth proportional to 28,441.85, 42,615.38 and 20,081.43 is: 30,088.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,441.85 : 42,615.38 = 20,081.43 : x
  2. Step 2: Convert to fraction form
    28,441.85/42,615.38 = 20,081.43/x
  3. Step 3: Cross multiply
    28,441.85x = 42,615.38 × 20,081.43
  4. Step 4: Simplify right side
    28,441.85x = 855,777,820.60
  5. Step 5: Solve for x
    x = 855,777,820.60/28,441.85
  6. Step 6: Final answer
    x = 30,088.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.