Home / 28,764.88-43,153.20-12,124.91

Finding the Fourth Proportional to 28,764.88, 43,153.20 and 12,124.91

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Solution

The fourth proportional to 28,764.88, 43,153.20 and 12,124.91 is: 18,189.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,764.88 : 43,153.20 = 12,124.91 : x
  2. Step 2: Convert to fraction form
    28,764.88/43,153.20 = 12,124.91/x
  3. Step 3: Cross multiply
    28,764.88x = 43,153.20 × 12,124.91
  4. Step 4: Simplify right side
    28,764.88x = 523,228,774.10
  5. Step 5: Solve for x
    x = 523,228,774.10/28,764.88
  6. Step 6: Final answer
    x = 18,189.85

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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.