Home / 19,427.68-29,134.80-12,020.80

Finding the Fourth Proportional to 19,427.68, 29,134.80 and 12,020.80

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Solution

The fourth proportional to 19,427.68, 29,134.80 and 12,020.80 is: 18,027.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,427.68 : 29,134.80 = 12,020.80 : x
  2. Step 2: Convert to fraction form
    19,427.68/29,134.80 = 12,020.80/x
  3. Step 3: Cross multiply
    19,427.68x = 29,134.80 × 12,020.80
  4. Step 4: Simplify right side
    19,427.68x = 350,223,603.84
  5. Step 5: Solve for x
    x = 350,223,603.84/19,427.68
  6. Step 6: Final answer
    x = 18,027.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.