Home / 20,850.06-28,762.32-14,133.42

Finding the Fourth Proportional to 20,850.06, 28,762.32 and 14,133.42

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Solution

The fourth proportional to 20,850.06, 28,762.32 and 14,133.42 is: 19,496.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,850.06 : 28,762.32 = 14,133.42 : x
  2. Step 2: Convert to fraction form
    20,850.06/28,762.32 = 14,133.42/x
  3. Step 3: Cross multiply
    20,850.06x = 28,762.32 × 14,133.42
  4. Step 4: Simplify right side
    20,850.06x = 406,509,948.73
  5. Step 5: Solve for x
    x = 406,509,948.73/20,850.06
  6. Step 6: Final answer
    x = 19,496.82

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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.