Home / 28,021.44-38,669.52-15,446.24

Finding the Fourth Proportional to 28,021.44, 38,669.52 and 15,446.24

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Solution

The fourth proportional to 28,021.44, 38,669.52 and 15,446.24 is: 21,315.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,021.44 : 38,669.52 = 15,446.24 : x
  2. Step 2: Convert to fraction form
    28,021.44/38,669.52 = 15,446.24/x
  3. Step 3: Cross multiply
    28,021.44x = 38,669.52 × 15,446.24
  4. Step 4: Simplify right side
    28,021.44x = 597,298,686.60
  5. Step 5: Solve for x
    x = 597,298,686.60/28,021.44
  6. Step 6: Final answer
    x = 21,315.77

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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.