Home / 38,782.80-58,188.78-12,495.06

Finding the Fourth Proportional to 38,782.80, 58,188.78 and 12,495.06

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Solution

The fourth proportional to 38,782.80, 58,188.78 and 12,495.06 is: 18,747.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,782.80 : 58,188.78 = 12,495.06 : x
  2. Step 2: Convert to fraction form
    38,782.80/58,188.78 = 12,495.06/x
  3. Step 3: Cross multiply
    38,782.80x = 58,188.78 × 12,495.06
  4. Step 4: Simplify right side
    38,782.80x = 727,072,297.43
  5. Step 5: Solve for x
    x = 727,072,297.43/38,782.80
  6. Step 6: Final answer
    x = 18,747.29

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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.