Home / 28,336.98-42,505.55-13,542.54

Finding the Fourth Proportional to 28,336.98, 42,505.55 and 13,542.54

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Solution

The fourth proportional to 28,336.98, 42,505.55 and 13,542.54 is: 20,313.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,336.98 : 42,505.55 = 13,542.54 : x
  2. Step 2: Convert to fraction form
    28,336.98/42,505.55 = 13,542.54/x
  3. Step 3: Cross multiply
    28,336.98x = 42,505.55 × 13,542.54
  4. Step 4: Simplify right side
    28,336.98x = 575,633,111.10
  5. Step 5: Solve for x
    x = 575,633,111.10/28,336.98
  6. Step 6: Final answer
    x = 20,313.85

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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.