Home / 20,949.51-28,882.03-14,223.46

Finding the Fourth Proportional to 20,949.51, 28,882.03 and 14,223.46

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Solution

The fourth proportional to 20,949.51, 28,882.03 and 14,223.46 is: 19,609.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,949.51 : 28,882.03 = 14,223.46 : x
  2. Step 2: Convert to fraction form
    20,949.51/28,882.03 = 14,223.46/x
  3. Step 3: Cross multiply
    20,949.51x = 28,882.03 × 14,223.46
  4. Step 4: Simplify right side
    20,949.51x = 410,802,318.90
  5. Step 5: Solve for x
    x = 410,802,318.90/20,949.51
  6. Step 6: Final answer
    x = 19,609.16

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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.