Home / 20,829.26-28,744.73-14,871.05

Finding the Fourth Proportional to 20,829.26, 28,744.73 and 14,871.05

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Solution

The fourth proportional to 20,829.26, 28,744.73 and 14,871.05 is: 20,522.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,829.26 : 28,744.73 = 14,871.05 : x
  2. Step 2: Convert to fraction form
    20,829.26/28,744.73 = 14,871.05/x
  3. Step 3: Cross multiply
    20,829.26x = 28,744.73 × 14,871.05
  4. Step 4: Simplify right side
    20,829.26x = 427,464,098.99
  5. Step 5: Solve for x
    x = 427,464,098.99/20,829.26
  6. Step 6: Final answer
    x = 20,522.29

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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.