Home / 20,580.84-28,401.44-11,628.48

Finding the Fourth Proportional to 20,580.84, 28,401.44 and 11,628.48

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Solution

The fourth proportional to 20,580.84, 28,401.44 and 11,628.48 is: 16,047.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,580.84 : 28,401.44 = 11,628.48 : x
  2. Step 2: Convert to fraction form
    20,580.84/28,401.44 = 11,628.48/x
  3. Step 3: Cross multiply
    20,580.84x = 28,401.44 × 11,628.48
  4. Step 4: Simplify right side
    20,580.84x = 330,265,577.01
  5. Step 5: Solve for x
    x = 330,265,577.01/20,580.84
  6. Step 6: Final answer
    x = 16,047.24

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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.