Home / 31,629.72-47,444.58-13,877.76

Finding the Fourth Proportional to 31,629.72, 47,444.58 and 13,877.76

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Solution

The fourth proportional to 31,629.72, 47,444.58 and 13,877.76 is: 20,816.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,629.72 : 47,444.58 = 13,877.76 : x
  2. Step 2: Convert to fraction form
    31,629.72/47,444.58 = 13,877.76/x
  3. Step 3: Cross multiply
    31,629.72x = 47,444.58 × 13,877.76
  4. Step 4: Simplify right side
    31,629.72x = 658,424,494.54
  5. Step 5: Solve for x
    x = 658,424,494.54/31,629.72
  6. Step 6: Final answer
    x = 20,816.64

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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.