Home / 28,451.43-42,645.31-10,664.97

Finding the Fourth Proportional to 28,451.43, 42,645.31 and 10,664.97

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Solution

The fourth proportional to 28,451.43, 42,645.31 and 10,664.97 is: 15,985.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,451.43 : 42,645.31 = 10,664.97 : x
  2. Step 2: Convert to fraction form
    28,451.43/42,645.31 = 10,664.97/x
  3. Step 3: Cross multiply
    28,451.43x = 42,645.31 × 10,664.97
  4. Step 4: Simplify right side
    28,451.43x = 454,810,951.79
  5. Step 5: Solve for x
    x = 454,810,951.79/28,451.43
  6. Step 6: Final answer
    x = 15,985.52

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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.