Home / 21,684.09-29,900.28-14,116.46

Finding the Fourth Proportional to 21,684.09, 29,900.28 and 14,116.46

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Solution

The fourth proportional to 21,684.09, 29,900.28 and 14,116.46 is: 19,465.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,684.09 : 29,900.28 = 14,116.46 : x
  2. Step 2: Convert to fraction form
    21,684.09/29,900.28 = 14,116.46/x
  3. Step 3: Cross multiply
    21,684.09x = 29,900.28 × 14,116.46
  4. Step 4: Simplify right side
    21,684.09x = 422,085,957.11
  5. Step 5: Solve for x
    x = 422,085,957.11/21,684.09
  6. Step 6: Final answer
    x = 19,465.24

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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.