Home / 31,856.74-47,581.38-28,850.30

Finding the Fourth Proportional to 31,856.74, 47,581.38 and 28,850.30

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Solution

The fourth proportional to 31,856.74, 47,581.38 and 28,850.30 is: 43,090.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,856.74 : 47,581.38 = 28,850.30 : x
  2. Step 2: Convert to fraction form
    31,856.74/47,581.38 = 28,850.30/x
  3. Step 3: Cross multiply
    31,856.74x = 47,581.38 × 28,850.30
  4. Step 4: Simplify right side
    31,856.74x = 1,372,737,087.41
  5. Step 5: Solve for x
    x = 1,372,737,087.41/31,856.74
  6. Step 6: Final answer
    x = 43,090.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.