Home / 28,842.12-43,265.16-12,185.64

Finding the Fourth Proportional to 28,842.12, 43,265.16 and 12,185.64

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Solution

The fourth proportional to 28,842.12, 43,265.16 and 12,185.64 is: 18,279.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,842.12 : 43,265.16 = 12,185.64 : x
  2. Step 2: Convert to fraction form
    28,842.12/43,265.16 = 12,185.64/x
  3. Step 3: Cross multiply
    28,842.12x = 43,265.16 × 12,185.64
  4. Step 4: Simplify right side
    28,842.12x = 527,213,664.30
  5. Step 5: Solve for x
    x = 527,213,664.30/28,842.12
  6. Step 6: Final answer
    x = 18,279.30

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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.