Home / 19,811.22-29,716.83-18,499.02

Finding the Fourth Proportional to 19,811.22, 29,716.83 and 18,499.02

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Solution

The fourth proportional to 19,811.22, 29,716.83 and 18,499.02 is: 27,748.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,811.22 : 29,716.83 = 18,499.02 : x
  2. Step 2: Convert to fraction form
    19,811.22/29,716.83 = 18,499.02/x
  3. Step 3: Cross multiply
    19,811.22x = 29,716.83 × 18,499.02
  4. Step 4: Simplify right side
    19,811.22x = 549,732,232.51
  5. Step 5: Solve for x
    x = 549,732,232.51/19,811.22
  6. Step 6: Final answer
    x = 27,748.53

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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.