Home / 20,723.58-28,598.13-11,292.21

Finding the Fourth Proportional to 20,723.58, 28,598.13 and 11,292.21

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Solution

The fourth proportional to 20,723.58, 28,598.13 and 11,292.21 is: 15,583.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723.58 : 28,598.13 = 11,292.21 : x
  2. Step 2: Convert to fraction form
    20,723.58/28,598.13 = 11,292.21/x
  3. Step 3: Cross multiply
    20,723.58x = 28,598.13 × 11,292.21
  4. Step 4: Simplify right side
    20,723.58x = 322,936,089.57
  5. Step 5: Solve for x
    x = 322,936,089.57/20,723.58
  6. Step 6: Final answer
    x = 15,583.03

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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.