Home / 31,890.22-47,837.31-9,705.22

Finding the Fourth Proportional to 31,890.22, 47,837.31 and 9,705.22

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Solution

The fourth proportional to 31,890.22, 47,837.31 and 9,705.22 is: 14,558.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,890.22 : 47,837.31 = 9,705.22 : x
  2. Step 2: Convert to fraction form
    31,890.22/47,837.31 = 9,705.22/x
  3. Step 3: Cross multiply
    31,890.22x = 47,837.31 × 9,705.22
  4. Step 4: Simplify right side
    31,890.22x = 464,271,617.76
  5. Step 5: Solve for x
    x = 464,271,617.76/31,890.22
  6. Step 6: Final answer
    x = 14,558.43

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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.