Home / 51,231.06-70,699.23-28,571.49

Finding the Fourth Proportional to 51,231.06, 70,699.23 and 28,571.49

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Solution

The fourth proportional to 51,231.06, 70,699.23 and 28,571.49 is: 39,428.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,231.06 : 70,699.23 = 28,571.49 : x
  2. Step 2: Convert to fraction form
    51,231.06/70,699.23 = 28,571.49/x
  3. Step 3: Cross multiply
    51,231.06x = 70,699.23 × 28,571.49
  4. Step 4: Simplify right side
    51,231.06x = 2,019,982,342.95
  5. Step 5: Solve for x
    x = 2,019,982,342.95/51,231.06
  6. Step 6: Final answer
    x = 39,428.86

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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.