Home / 43,415.08-65,120.65-18,104.15

Finding the Fourth Proportional to 43,415.08, 65,120.65 and 18,104.15

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Solution

The fourth proportional to 43,415.08, 65,120.65 and 18,104.15 is: 27,155.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,415.08 : 65,120.65 = 18,104.15 : x
  2. Step 2: Convert to fraction form
    43,415.08/65,120.65 = 18,104.15/x
  3. Step 3: Cross multiply
    43,415.08x = 65,120.65 × 18,104.15
  4. Step 4: Simplify right side
    43,415.08x = 1,178,953,599.57
  5. Step 5: Solve for x
    x = 1,178,953,599.57/43,415.08
  6. Step 6: Final answer
    x = 27,155.39

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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.