Home / 43,845.68-65,772.12-18,886.32

Finding the Fourth Proportional to 43,845.68, 65,772.12 and 18,886.32

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Solution

The fourth proportional to 43,845.68, 65,772.12 and 18,886.32 is: 28,331.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,845.68 : 65,772.12 = 18,886.32 : x
  2. Step 2: Convert to fraction form
    43,845.68/65,772.12 = 18,886.32/x
  3. Step 3: Cross multiply
    43,845.68x = 65,772.12 × 18,886.32
  4. Step 4: Simplify right side
    43,845.68x = 1,242,193,305.40
  5. Step 5: Solve for x
    x = 1,242,193,305.40/43,845.68
  6. Step 6: Final answer
    x = 28,331.03

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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.