Home / 28,575.66-42,863.50-12,997.74

Finding the Fourth Proportional to 28,575.66, 42,863.50 and 12,997.74

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Solution

The fourth proportional to 28,575.66, 42,863.50 and 12,997.74 is: 19,496.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,575.66 : 42,863.50 = 12,997.74 : x
  2. Step 2: Convert to fraction form
    28,575.66/42,863.50 = 12,997.74/x
  3. Step 3: Cross multiply
    28,575.66x = 42,863.50 × 12,997.74
  4. Step 4: Simplify right side
    28,575.66x = 557,128,628.49
  5. Step 5: Solve for x
    x = 557,128,628.49/28,575.66
  6. Step 6: Final answer
    x = 19,496.61

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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.