Home / 43,084.28-64,626.42-11,918.72

Finding the Fourth Proportional to 43,084.28, 64,626.42 and 11,918.72

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Solution

The fourth proportional to 43,084.28, 64,626.42 and 11,918.72 is: 17,878.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,084.28 : 64,626.42 = 11,918.72 : x
  2. Step 2: Convert to fraction form
    43,084.28/64,626.42 = 11,918.72/x
  3. Step 3: Cross multiply
    43,084.28x = 64,626.42 × 11,918.72
  4. Step 4: Simplify right side
    43,084.28x = 770,264,204.58
  5. Step 5: Solve for x
    x = 770,264,204.58/43,084.28
  6. Step 6: Final answer
    x = 17,878.08

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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.