Home / 38,781.75-58,172.63-11,079.75

Finding the Fourth Proportional to 38,781.75, 58,172.63 and 11,079.75

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Solution

The fourth proportional to 38,781.75, 58,172.63 and 11,079.75 is: 16,619.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,781.75 : 58,172.63 = 11,079.75 : x
  2. Step 2: Convert to fraction form
    38,781.75/58,172.63 = 11,079.75/x
  3. Step 3: Cross multiply
    38,781.75x = 58,172.63 × 11,079.75
  4. Step 4: Simplify right side
    38,781.75x = 644,538,141.84
  5. Step 5: Solve for x
    x = 644,538,141.84/38,781.75
  6. Step 6: Final answer
    x = 16,619.63

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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.