Home / 31,570.09-47,354.73-9,081.32

Finding the Fourth Proportional to 31,570.09, 47,354.73 and 9,081.32

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Solution

The fourth proportional to 31,570.09, 47,354.73 and 9,081.32 is: 13,621.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,570.09 : 47,354.73 = 9,081.32 : x
  2. Step 2: Convert to fraction form
    31,570.09/47,354.73 = 9,081.32/x
  3. Step 3: Cross multiply
    31,570.09x = 47,354.73 × 9,081.32
  4. Step 4: Simplify right side
    31,570.09x = 430,043,185.82
  5. Step 5: Solve for x
    x = 430,043,185.82/31,570.09
  6. Step 6: Final answer
    x = 13,621.86

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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.