Home / 21,684.09-29,929.03-14,117.23

Finding the Fourth Proportional to 21,684.09, 29,929.03 and 14,117.23

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Solution

The fourth proportional to 21,684.09, 29,929.03 and 14,117.23 is: 19,485.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,684.09 : 29,929.03 = 14,117.23 : x
  2. Step 2: Convert to fraction form
    21,684.09/29,929.03 = 14,117.23/x
  3. Step 3: Cross multiply
    21,684.09x = 29,929.03 × 14,117.23
  4. Step 4: Simplify right side
    21,684.09x = 422,515,000.19
  5. Step 5: Solve for x
    x = 422,515,000.19/21,684.09
  6. Step 6: Final answer
    x = 19,485.02

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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.