Home / 28,348.20-42,523-13,558.68

Finding the Fourth Proportional to 28,348.20, 42,523 and 13,558.68

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Solution

The fourth proportional to 28,348.20, 42,523 and 13,558.68 is: 20,338.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,348.20 : 42,523 = 13,558.68 : x
  2. Step 2: Convert to fraction form
    28,348.20/42,523 = 13,558.68/x
  3. Step 3: Cross multiply
    28,348.20x = 42,523 × 13,558.68
  4. Step 4: Simplify right side
    28,348.20x = 576,555,749.64
  5. Step 5: Solve for x
    x = 576,555,749.64/28,348.20
  6. Step 6: Final answer
    x = 20,338.35

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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.