Home / 28,406.10-42,609.24-8,684.58

Finding the Fourth Proportional to 28,406.10, 42,609.24 and 8,684.58

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Solution

The fourth proportional to 28,406.10, 42,609.24 and 8,684.58 is: 13,026.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,406.10 : 42,609.24 = 8,684.58 : x
  2. Step 2: Convert to fraction form
    28,406.10/42,609.24 = 8,684.58/x
  3. Step 3: Cross multiply
    28,406.10x = 42,609.24 × 8,684.58
  4. Step 4: Simplify right side
    28,406.10x = 370,043,353.52
  5. Step 5: Solve for x
    x = 370,043,353.52/28,406.10
  6. Step 6: Final answer
    x = 13,026.90

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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.