Home / 31,622.40-47,428.84-11,896.36

Finding the Fourth Proportional to 31,622.40, 47,428.84 and 11,896.36

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Solution

The fourth proportional to 31,622.40, 47,428.84 and 11,896.36 is: 17,842.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,622.40 : 47,428.84 = 11,896.36 : x
  2. Step 2: Convert to fraction form
    31,622.40/47,428.84 = 11,896.36/x
  3. Step 3: Cross multiply
    31,622.40x = 47,428.84 × 11,896.36
  4. Step 4: Simplify right side
    31,622.40x = 564,230,555.02
  5. Step 5: Solve for x
    x = 564,230,555.02/31,622.40
  6. Step 6: Final answer
    x = 17,842.75

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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.