Home / 20,722.17-28,588.04-14,438.19

Finding the Fourth Proportional to 20,722.17, 28,588.04 and 14,438.19

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Solution

The fourth proportional to 20,722.17, 28,588.04 and 14,438.19 is: 19,918.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,722.17 : 28,588.04 = 14,438.19 : x
  2. Step 2: Convert to fraction form
    20,722.17/28,588.04 = 14,438.19/x
  3. Step 3: Cross multiply
    20,722.17x = 28,588.04 × 14,438.19
  4. Step 4: Simplify right side
    20,722.17x = 412,759,481.06
  5. Step 5: Solve for x
    x = 412,759,481.06/20,722.17
  6. Step 6: Final answer
    x = 19,918.74

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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.