Home / 43,518.60-65,284.65-18,558.72

Finding the Fourth Proportional to 43,518.60, 65,284.65 and 18,558.72

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Solution

The fourth proportional to 43,518.60, 65,284.65 and 18,558.72 is: 27,840.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,518.60 : 65,284.65 = 18,558.72 : x
  2. Step 2: Convert to fraction form
    43,518.60/65,284.65 = 18,558.72/x
  3. Step 3: Cross multiply
    43,518.60x = 65,284.65 × 18,558.72
  4. Step 4: Simplify right side
    43,518.60x = 1,211,599,539.65
  5. Step 5: Solve for x
    x = 1,211,599,539.65/43,518.60
  6. Step 6: Final answer
    x = 27,840.96

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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.