Home / 31,960.46-47,947.60-12,239.01

Finding the Fourth Proportional to 31,960.46, 47,947.60 and 12,239.01

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Solution

The fourth proportional to 31,960.46, 47,947.60 and 12,239.01 is: 18,361.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,960.46 : 47,947.60 = 12,239.01 : x
  2. Step 2: Convert to fraction form
    31,960.46/47,947.60 = 12,239.01/x
  3. Step 3: Cross multiply
    31,960.46x = 47,947.60 × 12,239.01
  4. Step 4: Simplify right side
    31,960.46x = 586,831,275.75
  5. Step 5: Solve for x
    x = 586,831,275.75/31,960.46
  6. Step 6: Final answer
    x = 18,361.17

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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.