Home / 28,026-38,678.61-15,450.75

Finding the Fourth Proportional to 28,026, 38,678.61 and 15,450.75

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Solution

The fourth proportional to 28,026, 38,678.61 and 15,450.75 is: 21,323.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,026 : 38,678.61 = 15,450.75 : x
  2. Step 2: Convert to fraction form
    28,026/38,678.61 = 15,450.75/x
  3. Step 3: Cross multiply
    28,026x = 38,678.61 × 15,450.75
  4. Step 4: Simplify right side
    28,026x = 597,613,591.40
  5. Step 5: Solve for x
    x = 597,613,591.40/28,026
  6. Step 6: Final answer
    x = 21,323.54

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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.