Home / 28,374.14-42,558.24-12,579.44

Finding the Fourth Proportional to 28,374.14, 42,558.24 and 12,579.44

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Solution

The fourth proportional to 28,374.14, 42,558.24 and 12,579.44 is: 18,867.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,374.14 : 42,558.24 = 12,579.44 : x
  2. Step 2: Convert to fraction form
    28,374.14/42,558.24 = 12,579.44/x
  3. Step 3: Cross multiply
    28,374.14x = 42,558.24 × 12,579.44
  4. Step 4: Simplify right side
    28,374.14x = 535,358,826.59
  5. Step 5: Solve for x
    x = 535,358,826.59/28,374.14
  6. Step 6: Final answer
    x = 18,867.84

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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.