Home / 37,999.74-56,980.26-12,690.15

Finding the Fourth Proportional to 37,999.74, 56,980.26 and 12,690.15

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Solution

The fourth proportional to 37,999.74, 56,980.26 and 12,690.15 is: 19,028.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,999.74 : 56,980.26 = 12,690.15 : x
  2. Step 2: Convert to fraction form
    37,999.74/56,980.26 = 12,690.15/x
  3. Step 3: Cross multiply
    37,999.74x = 56,980.26 × 12,690.15
  4. Step 4: Simplify right side
    37,999.74x = 723,088,046.44
  5. Step 5: Solve for x
    x = 723,088,046.44/37,999.74
  6. Step 6: Final answer
    x = 19,028.76

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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.