Home / 22,290.90-30,771.34-14,235.11

Finding the Fourth Proportional to 22,290.90, 30,771.34 and 14,235.11

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Solution

The fourth proportional to 22,290.90, 30,771.34 and 14,235.11 is: 19,650.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,290.90 : 30,771.34 = 14,235.11 : x
  2. Step 2: Convert to fraction form
    22,290.90/30,771.34 = 14,235.11/x
  3. Step 3: Cross multiply
    22,290.90x = 30,771.34 × 14,235.11
  4. Step 4: Simplify right side
    22,290.90x = 438,033,451.09
  5. Step 5: Solve for x
    x = 438,033,451.09/22,290.90
  6. Step 6: Final answer
    x = 19,650.77

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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.