Home / 40,228.31-60,318.92-12,139.94

Finding the Fourth Proportional to 40,228.31, 60,318.92 and 12,139.94

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Solution

The fourth proportional to 40,228.31, 60,318.92 and 12,139.94 is: 18,202.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,228.31 : 60,318.92 = 12,139.94 : x
  2. Step 2: Convert to fraction form
    40,228.31/60,318.92 = 12,139.94/x
  3. Step 3: Cross multiply
    40,228.31x = 60,318.92 × 12,139.94
  4. Step 4: Simplify right side
    40,228.31x = 732,267,707.37
  5. Step 5: Solve for x
    x = 732,267,707.37/40,228.31
  6. Step 6: Final answer
    x = 18,202.80

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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.