Home / 31,995.84-47,924.49-20,868.77

Finding the Fourth Proportional to 31,995.84, 47,924.49 and 20,868.77

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Solution

The fourth proportional to 31,995.84, 47,924.49 and 20,868.77 is: 31,257.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,995.84 : 47,924.49 = 20,868.77 : x
  2. Step 2: Convert to fraction form
    31,995.84/47,924.49 = 20,868.77/x
  3. Step 3: Cross multiply
    31,995.84x = 47,924.49 × 20,868.77
  4. Step 4: Simplify right side
    31,995.84x = 1,000,125,159.18
  5. Step 5: Solve for x
    x = 1,000,125,159.18/31,995.84
  6. Step 6: Final answer
    x = 31,257.97

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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.