Home / 20,772.94-31,152.13-5,977.89

Finding the Fourth Proportional to 20,772.94, 31,152.13 and 5,977.89

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Solution

The fourth proportional to 20,772.94, 31,152.13 and 5,977.89 is: 8,964.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,772.94 : 31,152.13 = 5,977.89 : x
  2. Step 2: Convert to fraction form
    20,772.94/31,152.13 = 5,977.89/x
  3. Step 3: Cross multiply
    20,772.94x = 31,152.13 × 5,977.89
  4. Step 4: Simplify right side
    20,772.94x = 186,224,006.41
  5. Step 5: Solve for x
    x = 186,224,006.41/20,772.94
  6. Step 6: Final answer
    x = 8,964.74

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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.