Home / 19,951.63-29,931.81-5,912.76

Finding the Fourth Proportional to 19,951.63, 29,931.81 and 5,912.76

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Solution

The fourth proportional to 19,951.63, 29,931.81 and 5,912.76 is: 8,870.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,951.63 : 29,931.81 = 5,912.76 : x
  2. Step 2: Convert to fraction form
    19,951.63/29,931.81 = 5,912.76/x
  3. Step 3: Cross multiply
    19,951.63x = 29,931.81 × 5,912.76
  4. Step 4: Simplify right side
    19,951.63x = 176,979,608.90
  5. Step 5: Solve for x
    x = 176,979,608.90/19,951.63
  6. Step 6: Final answer
    x = 8,870.43

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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.