Home / 15,868.48-21,739.52-15,277.60

Finding the Fourth Proportional to 15,868.48, 21,739.52 and 15,277.60

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Solution

The fourth proportional to 15,868.48, 21,739.52 and 15,277.60 is: 20,930.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,868.48 : 21,739.52 = 15,277.60 : x
  2. Step 2: Convert to fraction form
    15,868.48/21,739.52 = 15,277.60/x
  3. Step 3: Cross multiply
    15,868.48x = 21,739.52 × 15,277.60
  4. Step 4: Simplify right side
    15,868.48x = 332,127,690.75
  5. Step 5: Solve for x
    x = 332,127,690.75/15,868.48
  6. Step 6: Final answer
    x = 20,930.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.