Home / 31,905.46-47,828.61-14,126.64

Finding the Fourth Proportional to 31,905.46, 47,828.61 and 14,126.64

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Solution

The fourth proportional to 31,905.46, 47,828.61 and 14,126.64 is: 21,176.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,905.46 : 47,828.61 = 14,126.64 : x
  2. Step 2: Convert to fraction form
    31,905.46/47,828.61 = 14,126.64/x
  3. Step 3: Cross multiply
    31,905.46x = 47,828.61 × 14,126.64
  4. Step 4: Simplify right side
    31,905.46x = 675,657,555.17
  5. Step 5: Solve for x
    x = 675,657,555.17/31,905.46
  6. Step 6: Final answer
    x = 21,176.86

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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.