Home / 25,379.76-38,057.85-13,530.54

Finding the Fourth Proportional to 25,379.76, 38,057.85 and 13,530.54

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Solution

The fourth proportional to 25,379.76, 38,057.85 and 13,530.54 is: 20,289.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,379.76 : 38,057.85 = 13,530.54 : x
  2. Step 2: Convert to fraction form
    25,379.76/38,057.85 = 13,530.54/x
  3. Step 3: Cross multiply
    25,379.76x = 38,057.85 × 13,530.54
  4. Step 4: Simplify right side
    25,379.76x = 514,943,261.74
  5. Step 5: Solve for x
    x = 514,943,261.74/25,379.76
  6. Step 6: Final answer
    x = 20,289.52

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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.