Home / 28,784.64-43,168.92-18,239.04

Finding the Fourth Proportional to 28,784.64, 43,168.92 and 18,239.04

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Solution

The fourth proportional to 28,784.64, 43,168.92 and 18,239.04 is: 27,353.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,784.64 : 43,168.92 = 18,239.04 : x
  2. Step 2: Convert to fraction form
    28,784.64/43,168.92 = 18,239.04/x
  3. Step 3: Cross multiply
    28,784.64x = 43,168.92 × 18,239.04
  4. Step 4: Simplify right side
    28,784.64x = 787,359,658.64
  5. Step 5: Solve for x
    x = 787,359,658.64/28,784.64
  6. Step 6: Final answer
    x = 27,353.47

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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.