Home / 21,437.37-29,584.62-12,939.35

Finding the Fourth Proportional to 21,437.37, 29,584.62 and 12,939.35

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Solution

The fourth proportional to 21,437.37, 29,584.62 and 12,939.35 is: 17,856.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,437.37 : 29,584.62 = 12,939.35 : x
  2. Step 2: Convert to fraction form
    21,437.37/29,584.62 = 12,939.35/x
  3. Step 3: Cross multiply
    21,437.37x = 29,584.62 × 12,939.35
  4. Step 4: Simplify right side
    21,437.37x = 382,805,604.87
  5. Step 5: Solve for x
    x = 382,805,604.87/21,437.37
  6. Step 6: Final answer
    x = 17,856.93

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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.