Home / 20,829.23-28,744.21-19,134.75

Finding the Fourth Proportional to 20,829.23, 28,744.21 and 19,134.75

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Solution

The fourth proportional to 20,829.23, 28,744.21 and 19,134.75 is: 26,405.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,829.23 : 28,744.21 = 19,134.75 : x
  2. Step 2: Convert to fraction form
    20,829.23/28,744.21 = 19,134.75/x
  3. Step 3: Cross multiply
    20,829.23x = 28,744.21 × 19,134.75
  4. Step 4: Simplify right side
    20,829.23x = 550,013,224.46
  5. Step 5: Solve for x
    x = 550,013,224.46/20,829.23
  6. Step 6: Final answer
    x = 26,405.84

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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.