Home / 20,759.52-28,647.98-11,807.01

Finding the Fourth Proportional to 20,759.52, 28,647.98 and 11,807.01

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Solution

The fourth proportional to 20,759.52, 28,647.98 and 11,807.01 is: 16,293.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,759.52 : 28,647.98 = 11,807.01 : x
  2. Step 2: Convert to fraction form
    20,759.52/28,647.98 = 11,807.01/x
  3. Step 3: Cross multiply
    20,759.52x = 28,647.98 × 11,807.01
  4. Step 4: Simplify right side
    20,759.52x = 338,246,986.34
  5. Step 5: Solve for x
    x = 338,246,986.34/20,759.52
  6. Step 6: Final answer
    x = 16,293.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.