Home / 19,106.53-28,485.38-18,620.98

Finding the Fourth Proportional to 19,106.53, 28,485.38 and 18,620.98

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Solution

The fourth proportional to 19,106.53, 28,485.38 and 18,620.98 is: 27,761.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,106.53 : 28,485.38 = 18,620.98 : x
  2. Step 2: Convert to fraction form
    19,106.53/28,485.38 = 18,620.98/x
  3. Step 3: Cross multiply
    19,106.53x = 28,485.38 × 18,620.98
  4. Step 4: Simplify right side
    19,106.53x = 530,425,666.61
  5. Step 5: Solve for x
    x = 530,425,666.61/19,106.53
  6. Step 6: Final answer
    x = 27,761.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.