Home / 19,578.24-29,427.84-12,700.80

Finding the Fourth Proportional to 19,578.24, 29,427.84 and 12,700.80

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Solution

The fourth proportional to 19,578.24, 29,427.84 and 12,700.80 is: 19,090.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,578.24 : 29,427.84 = 12,700.80 : x
  2. Step 2: Convert to fraction form
    19,578.24/29,427.84 = 12,700.80/x
  3. Step 3: Cross multiply
    19,578.24x = 29,427.84 × 12,700.80
  4. Step 4: Simplify right side
    19,578.24x = 373,757,110.27
  5. Step 5: Solve for x
    x = 373,757,110.27/19,578.24
  6. Step 6: Final answer
    x = 19,090.43

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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.