Home / 19,620.42-27,075.62-11,123.32

Finding the Fourth Proportional to 19,620.42, 27,075.62 and 11,123.32

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Solution

The fourth proportional to 19,620.42, 27,075.62 and 11,123.32 is: 15,349.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,620.42 : 27,075.62 = 11,123.32 : x
  2. Step 2: Convert to fraction form
    19,620.42/27,075.62 = 11,123.32/x
  3. Step 3: Cross multiply
    19,620.42x = 27,075.62 × 11,123.32
  4. Step 4: Simplify right side
    19,620.42x = 301,170,785.46
  5. Step 5: Solve for x
    x = 301,170,785.46/19,620.42
  6. Step 6: Final answer
    x = 15,349.86

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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.