Home / 28,630.68-42,958.32-13,850.64

Finding the Fourth Proportional to 28,630.68, 42,958.32 and 13,850.64

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Solution

The fourth proportional to 28,630.68, 42,958.32 and 13,850.64 is: 20,781.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,630.68 : 42,958.32 = 13,850.64 : x
  2. Step 2: Convert to fraction form
    28,630.68/42,958.32 = 13,850.64/x
  3. Step 3: Cross multiply
    28,630.68x = 42,958.32 × 13,850.64
  4. Step 4: Simplify right side
    28,630.68x = 595,000,225.32
  5. Step 5: Solve for x
    x = 595,000,225.32/28,630.68
  6. Step 6: Final answer
    x = 20,781.91

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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.