Home / 42,170.43-63,257.67-12,590.58

Finding the Fourth Proportional to 42,170.43, 63,257.67 and 12,590.58

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Solution

The fourth proportional to 42,170.43, 63,257.67 and 12,590.58 is: 18,886.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,170.43 : 63,257.67 = 12,590.58 : x
  2. Step 2: Convert to fraction form
    42,170.43/63,257.67 = 12,590.58/x
  3. Step 3: Cross multiply
    42,170.43x = 63,257.67 × 12,590.58
  4. Step 4: Simplify right side
    42,170.43x = 796,450,754.75
  5. Step 5: Solve for x
    x = 796,450,754.75/42,170.43
  6. Step 6: Final answer
    x = 18,886.47

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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.