Home / 51,912.07-71,638.67-28,038.76

Finding the Fourth Proportional to 51,912.07, 71,638.67 and 28,038.76

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Solution

The fourth proportional to 51,912.07, 71,638.67 and 28,038.76 is: 38,693.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,912.07 : 71,638.67 = 28,038.76 : x
  2. Step 2: Convert to fraction form
    51,912.07/71,638.67 = 28,038.76/x
  3. Step 3: Cross multiply
    51,912.07x = 71,638.67 × 28,038.76
  4. Step 4: Simplify right side
    51,912.07x = 2,008,659,474.85
  5. Step 5: Solve for x
    x = 2,008,659,474.85/51,912.07
  6. Step 6: Final answer
    x = 38,693.50

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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.