Home / 28,237.27-38,967.45-15,662.02

Finding the Fourth Proportional to 28,237.27, 38,967.45 and 15,662.02

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Solution

The fourth proportional to 28,237.27, 38,967.45 and 15,662.02 is: 21,613.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,237.27 : 38,967.45 = 15,662.02 : x
  2. Step 2: Convert to fraction form
    28,237.27/38,967.45 = 15,662.02/x
  3. Step 3: Cross multiply
    28,237.27x = 38,967.45 × 15,662.02
  4. Step 4: Simplify right side
    28,237.27x = 610,308,942.56
  5. Step 5: Solve for x
    x = 610,308,942.56/28,237.27
  6. Step 6: Final answer
    x = 21,613.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.