Home / 19,675.62-29,512.35-7,990.02

Finding the Fourth Proportional to 19,675.62, 29,512.35 and 7,990.02

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Solution

The fourth proportional to 19,675.62, 29,512.35 and 7,990.02 is: 11,984.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,675.62 : 29,512.35 = 7,990.02 : x
  2. Step 2: Convert to fraction form
    19,675.62/29,512.35 = 7,990.02/x
  3. Step 3: Cross multiply
    19,675.62x = 29,512.35 × 7,990.02
  4. Step 4: Simplify right side
    19,675.62x = 235,804,266.75
  5. Step 5: Solve for x
    x = 235,804,266.75/19,675.62
  6. Step 6: Final answer
    x = 11,984.59

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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.