Home / 31,806.40-47,709.60-22,475.20

Finding the Fourth Proportional to 31,806.40, 47,709.60 and 22,475.20

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Solution

The fourth proportional to 31,806.40, 47,709.60 and 22,475.20 is: 33,712.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,806.40 : 47,709.60 = 22,475.20 : x
  2. Step 2: Convert to fraction form
    31,806.40/47,709.60 = 22,475.20/x
  3. Step 3: Cross multiply
    31,806.40x = 47,709.60 × 22,475.20
  4. Step 4: Simplify right side
    31,806.40x = 1,072,282,801.92
  5. Step 5: Solve for x
    x = 1,072,282,801.92/31,806.40
  6. Step 6: Final answer
    x = 33,712.80

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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.