Home / 21,828.68-30,135.06-14,696.04

Finding the Fourth Proportional to 21,828.68, 30,135.06 and 14,696.04

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Solution

The fourth proportional to 21,828.68, 30,135.06 and 14,696.04 is: 20,288.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,828.68 : 30,135.06 = 14,696.04 : x
  2. Step 2: Convert to fraction form
    21,828.68/30,135.06 = 14,696.04/x
  3. Step 3: Cross multiply
    21,828.68x = 30,135.06 × 14,696.04
  4. Step 4: Simplify right side
    21,828.68x = 442,866,047.16
  5. Step 5: Solve for x
    x = 442,866,047.16/21,828.68
  6. Step 6: Final answer
    x = 20,288.27

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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.