Home / 31,910.37-47,891.06-14,381.56

Finding the Fourth Proportional to 31,910.37, 47,891.06 and 14,381.56

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Solution

The fourth proportional to 31,910.37, 47,891.06 and 14,381.56 is: 21,583.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,910.37 : 47,891.06 = 14,381.56 : x
  2. Step 2: Convert to fraction form
    31,910.37/47,891.06 = 14,381.56/x
  3. Step 3: Cross multiply
    31,910.37x = 47,891.06 × 14,381.56
  4. Step 4: Simplify right side
    31,910.37x = 688,748,275.64
  5. Step 5: Solve for x
    x = 688,748,275.64/31,910.37
  6. Step 6: Final answer
    x = 21,583.84

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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.