Home / 19,213.80-28,763.10-18,074.60

Finding the Fourth Proportional to 19,213.80, 28,763.10 and 18,074.60

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Solution

The fourth proportional to 19,213.80, 28,763.10 and 18,074.60 is: 27,057.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,213.80 : 28,763.10 = 18,074.60 : x
  2. Step 2: Convert to fraction form
    19,213.80/28,763.10 = 18,074.60/x
  3. Step 3: Cross multiply
    19,213.80x = 28,763.10 × 18,074.60
  4. Step 4: Simplify right side
    19,213.80x = 519,881,527.26
  5. Step 5: Solve for x
    x = 519,881,527.26/19,213.80
  6. Step 6: Final answer
    x = 27,057.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.