Home / 28,748.64-43,122.96-13,119.84

Finding the Fourth Proportional to 28,748.64, 43,122.96 and 13,119.84

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Solution

The fourth proportional to 28,748.64, 43,122.96 and 13,119.84 is: 19,679.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,748.64 : 43,122.96 = 13,119.84 : x
  2. Step 2: Convert to fraction form
    28,748.64/43,122.96 = 13,119.84/x
  3. Step 3: Cross multiply
    28,748.64x = 43,122.96 × 13,119.84
  4. Step 4: Simplify right side
    28,748.64x = 565,766,335.53
  5. Step 5: Solve for x
    x = 565,766,335.53/28,748.64
  6. Step 6: Final answer
    x = 19,679.76

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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.