Home / 20,736.90-28,605.37-14,367.22

Finding the Fourth Proportional to 20,736.90, 28,605.37 and 14,367.22

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Solution

The fourth proportional to 20,736.90, 28,605.37 and 14,367.22 is: 19,818.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736.90 : 28,605.37 = 14,367.22 : x
  2. Step 2: Convert to fraction form
    20,736.90/28,605.37 = 14,367.22/x
  3. Step 3: Cross multiply
    20,736.90x = 28,605.37 × 14,367.22
  4. Step 4: Simplify right side
    20,736.90x = 410,979,603.52
  5. Step 5: Solve for x
    x = 410,979,603.52/20,736.90
  6. Step 6: Final answer
    x = 19,818.76

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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.