Home / 20,329.59-28,055.26-12,263.21

Finding the Fourth Proportional to 20,329.59, 28,055.26 and 12,263.21

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Solution

The fourth proportional to 20,329.59, 28,055.26 and 12,263.21 is: 16,923.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,329.59 : 28,055.26 = 12,263.21 : x
  2. Step 2: Convert to fraction form
    20,329.59/28,055.26 = 12,263.21/x
  3. Step 3: Cross multiply
    20,329.59x = 28,055.26 × 12,263.21
  4. Step 4: Simplify right side
    20,329.59x = 344,047,544.98
  5. Step 5: Solve for x
    x = 344,047,544.98/20,329.59
  6. Step 6: Final answer
    x = 16,923.49

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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.