Home / 29,271.70-43,876.06-12,639.57

Finding the Fourth Proportional to 29,271.70, 43,876.06 and 12,639.57

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Solution

The fourth proportional to 29,271.70, 43,876.06 and 12,639.57 is: 18,945.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,271.70 : 43,876.06 = 12,639.57 : x
  2. Step 2: Convert to fraction form
    29,271.70/43,876.06 = 12,639.57/x
  3. Step 3: Cross multiply
    29,271.70x = 43,876.06 × 12,639.57
  4. Step 4: Simplify right side
    29,271.70x = 554,574,531.69
  5. Step 5: Solve for x
    x = 554,574,531.69/29,271.70
  6. Step 6: Final answer
    x = 18,945.76

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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.