Home / 21,336.72-29,444.88-11,907.36

Finding the Fourth Proportional to 21,336.72, 29,444.88 and 11,907.36

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Solution

The fourth proportional to 21,336.72, 29,444.88 and 11,907.36 is: 16,432.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,336.72 : 29,444.88 = 11,907.36 : x
  2. Step 2: Convert to fraction form
    21,336.72/29,444.88 = 11,907.36/x
  3. Step 3: Cross multiply
    21,336.72x = 29,444.88 × 11,907.36
  4. Step 4: Simplify right side
    21,336.72x = 350,610,786.32
  5. Step 5: Solve for x
    x = 350,610,786.32/21,336.72
  6. Step 6: Final answer
    x = 16,432.27

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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.