Home / 19,979.58-29,961.58-7,492.80

Finding the Fourth Proportional to 19,979.58, 29,961.58 and 7,492.80

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Solution

The fourth proportional to 19,979.58, 29,961.58 and 7,492.80 is: 11,236.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,979.58 : 29,961.58 = 7,492.80 : x
  2. Step 2: Convert to fraction form
    19,979.58/29,961.58 = 7,492.80/x
  3. Step 3: Cross multiply
    19,979.58x = 29,961.58 × 7,492.80
  4. Step 4: Simplify right side
    19,979.58x = 224,496,126.62
  5. Step 5: Solve for x
    x = 224,496,126.62/19,979.58
  6. Step 6: Final answer
    x = 11,236.28

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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.