Home / 31,422.96-47,142.54-9,237.06

Finding the Fourth Proportional to 31,422.96, 47,142.54 and 9,237.06

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Solution

The fourth proportional to 31,422.96, 47,142.54 and 9,237.06 is: 13,857.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,422.96 : 47,142.54 = 9,237.06 : x
  2. Step 2: Convert to fraction form
    31,422.96/47,142.54 = 9,237.06/x
  3. Step 3: Cross multiply
    31,422.96x = 47,142.54 × 9,237.06
  4. Step 4: Simplify right side
    31,422.96x = 435,458,470.53
  5. Step 5: Solve for x
    x = 435,458,470.53/31,422.96
  6. Step 6: Final answer
    x = 13,857.97

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1.5x scale

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.