Home / 28,950.12-43,392.24-12,299.76

Finding the Fourth Proportional to 28,950.12, 43,392.24 and 12,299.76

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Solution

The fourth proportional to 28,950.12, 43,392.24 and 12,299.76 is: 18,435.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,950.12 : 43,392.24 = 12,299.76 : x
  2. Step 2: Convert to fraction form
    28,950.12/43,392.24 = 12,299.76/x
  3. Step 3: Cross multiply
    28,950.12x = 43,392.24 × 12,299.76
  4. Step 4: Simplify right side
    28,950.12x = 533,714,137.86
  5. Step 5: Solve for x
    x = 533,714,137.86/28,950.12
  6. Step 6: Final answer
    x = 18,435.65

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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.