Home / 21,684.33-29,929.38-14,117.49

Finding the Fourth Proportional to 21,684.33, 29,929.38 and 14,117.49

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Solution

The fourth proportional to 21,684.33, 29,929.38 and 14,117.49 is: 19,485.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,684.33 : 29,929.38 = 14,117.49 : x
  2. Step 2: Convert to fraction form
    21,684.33/29,929.38 = 14,117.49/x
  3. Step 3: Cross multiply
    21,684.33x = 29,929.38 × 14,117.49
  4. Step 4: Simplify right side
    21,684.33x = 422,527,722.86
  5. Step 5: Solve for x
    x = 422,527,722.86/21,684.33
  6. Step 6: Final answer
    x = 19,485.39

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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.