Home / 31,731.35-47,489.74-30,877.46

Finding the Fourth Proportional to 31,731.35, 47,489.74 and 30,877.46

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Solution

The fourth proportional to 31,731.35, 47,489.74 and 30,877.46 is: 46,211.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,731.35 : 47,489.74 = 30,877.46 : x
  2. Step 2: Convert to fraction form
    31,731.35/47,489.74 = 30,877.46/x
  3. Step 3: Cross multiply
    31,731.35x = 47,489.74 × 30,877.46
  4. Step 4: Simplify right side
    31,731.35x = 1,466,362,373.54
  5. Step 5: Solve for x
    x = 1,466,362,373.54/31,731.35
  6. Step 6: Final answer
    x = 46,211.79

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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.