Home / 31,840.92-47,779.56-14,310.72

Finding the Fourth Proportional to 31,840.92, 47,779.56 and 14,310.72

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Solution

The fourth proportional to 31,840.92, 47,779.56 and 14,310.72 is: 21,474.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,840.92 : 47,779.56 = 14,310.72 : x
  2. Step 2: Convert to fraction form
    31,840.92/47,779.56 = 14,310.72/x
  3. Step 3: Cross multiply
    31,840.92x = 47,779.56 × 14,310.72
  4. Step 4: Simplify right side
    31,840.92x = 683,759,904.88
  5. Step 5: Solve for x
    x = 683,759,904.88/31,840.92
  6. Step 6: Final answer
    x = 21,474.25

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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.