Home / 65,627.80-98,438.26-18,878.84

Finding the Fourth Proportional to 65,627.80, 98,438.26 and 18,878.84

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Solution

The fourth proportional to 65,627.80, 98,438.26 and 18,878.84 is: 28,317.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,627.80 : 98,438.26 = 18,878.84 : x
  2. Step 2: Convert to fraction form
    65,627.80/98,438.26 = 18,878.84/x
  3. Step 3: Cross multiply
    65,627.80x = 98,438.26 × 18,878.84
  4. Step 4: Simplify right side
    65,627.80x = 1,858,400,160.42
  5. Step 5: Solve for x
    x = 1,858,400,160.42/65,627.80
  6. Step 6: Final answer
    x = 28,317.27

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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.