Home / 21,595.92-29,801.70-12,164.28

Finding the Fourth Proportional to 21,595.92, 29,801.70 and 12,164.28

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Solution

The fourth proportional to 21,595.92, 29,801.70 and 12,164.28 is: 16,786.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,595.92 : 29,801.70 = 12,164.28 : x
  2. Step 2: Convert to fraction form
    21,595.92/29,801.70 = 12,164.28/x
  3. Step 3: Cross multiply
    21,595.92x = 29,801.70 × 12,164.28
  4. Step 4: Simplify right side
    21,595.92x = 362,516,223.28
  5. Step 5: Solve for x
    x = 362,516,223.28/21,595.92
  6. Step 6: Final answer
    x = 16,786.33

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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.