Home / 27,951.20-38,570.54-15,376.76

Finding the Fourth Proportional to 27,951.20, 38,570.54 and 15,376.76

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Solution

The fourth proportional to 27,951.20, 38,570.54 and 15,376.76 is: 21,218.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,951.20 : 38,570.54 = 15,376.76 : x
  2. Step 2: Convert to fraction form
    27,951.20/38,570.54 = 15,376.76/x
  3. Step 3: Cross multiply
    27,951.20x = 38,570.54 × 15,376.76
  4. Step 4: Simplify right side
    27,951.20x = 593,089,936.65
  5. Step 5: Solve for x
    x = 593,089,936.65/27,951.20
  6. Step 6: Final answer
    x = 21,218.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.