Home / 38,886.91-58,339.59-12,591.61

Finding the Fourth Proportional to 38,886.91, 58,339.59 and 12,591.61

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Solution

The fourth proportional to 38,886.91, 58,339.59 and 12,591.61 is: 18,890.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,886.91 : 58,339.59 = 12,591.61 : x
  2. Step 2: Convert to fraction form
    38,886.91/58,339.59 = 12,591.61/x
  3. Step 3: Cross multiply
    38,886.91x = 58,339.59 × 12,591.61
  4. Step 4: Simplify right side
    38,886.91x = 734,589,364.84
  5. Step 5: Solve for x
    x = 734,589,364.84/38,886.91
  6. Step 6: Final answer
    x = 18,890.40

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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.