Home / 19,905.80-27,478.52-14,166.98

Finding the Fourth Proportional to 19,905.80, 27,478.52 and 14,166.98

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Solution

The fourth proportional to 19,905.80, 27,478.52 and 14,166.98 is: 19,556.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,905.80 : 27,478.52 = 14,166.98 : x
  2. Step 2: Convert to fraction form
    19,905.80/27,478.52 = 14,166.98/x
  3. Step 3: Cross multiply
    19,905.80x = 27,478.52 × 14,166.98
  4. Step 4: Simplify right side
    19,905.80x = 389,287,474.08
  5. Step 5: Solve for x
    x = 389,287,474.08/19,905.80
  6. Step 6: Final answer
    x = 19,556.48

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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.