Home / 20,391.93-30,595.59-13,879.53

Finding the Fourth Proportional to 20,391.93, 30,595.59 and 13,879.53

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Solution

The fourth proportional to 20,391.93, 30,595.59 and 13,879.53 is: 20,824.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,391.93 : 30,595.59 = 13,879.53 : x
  2. Step 2: Convert to fraction form
    20,391.93/30,595.59 = 13,879.53/x
  3. Step 3: Cross multiply
    20,391.93x = 30,595.59 × 13,879.53
  4. Step 4: Simplify right side
    20,391.93x = 424,652,409.27
  5. Step 5: Solve for x
    x = 424,652,409.27/20,391.93
  6. Step 6: Final answer
    x = 20,824.53

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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.