Home / 28,987.12-43,481.08-8,210.60

Finding the Fourth Proportional to 28,987.12, 43,481.08 and 8,210.60

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Solution

The fourth proportional to 28,987.12, 43,481.08 and 8,210.60 is: 12,316.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,987.12 : 43,481.08 = 8,210.60 : x
  2. Step 2: Convert to fraction form
    28,987.12/43,481.08 = 8,210.60/x
  3. Step 3: Cross multiply
    28,987.12x = 43,481.08 × 8,210.60
  4. Step 4: Simplify right side
    28,987.12x = 357,005,755.45
  5. Step 5: Solve for x
    x = 357,005,755.45/28,987.12
  6. Step 6: Final answer
    x = 12,316.01

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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.