Home / 19,420.32-29,118.24-7,736.88

Finding the Fourth Proportional to 19,420.32, 29,118.24 and 7,736.88

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Solution

The fourth proportional to 19,420.32, 29,118.24 and 7,736.88 is: 11,600.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,420.32 : 29,118.24 = 7,736.88 : x
  2. Step 2: Convert to fraction form
    19,420.32/29,118.24 = 7,736.88/x
  3. Step 3: Cross multiply
    19,420.32x = 29,118.24 × 7,736.88
  4. Step 4: Simplify right side
    19,420.32x = 225,284,328.69
  5. Step 5: Solve for x
    x = 225,284,328.69/19,420.32
  6. Step 6: Final answer
    x = 11,600.44

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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.