Home / 31,581.44-47,356.80-18,438.08

Finding the Fourth Proportional to 31,581.44, 47,356.80 and 18,438.08

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Solution

The fourth proportional to 31,581.44, 47,356.80 and 18,438.08 is: 27,648.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,581.44 : 47,356.80 = 18,438.08 : x
  2. Step 2: Convert to fraction form
    31,581.44/47,356.80 = 18,438.08/x
  3. Step 3: Cross multiply
    31,581.44x = 47,356.80 × 18,438.08
  4. Step 4: Simplify right side
    31,581.44x = 873,168,466.94
  5. Step 5: Solve for x
    x = 873,168,466.94/31,581.44
  6. Step 6: Final answer
    x = 27,648.15

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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.