Home / 43,947.28-65,920.94-12,360.70

Finding the Fourth Proportional to 43,947.28, 65,920.94 and 12,360.70

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Solution

The fourth proportional to 43,947.28, 65,920.94 and 12,360.70 is: 18,541.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,947.28 : 65,920.94 = 12,360.70 : x
  2. Step 2: Convert to fraction form
    43,947.28/65,920.94 = 12,360.70/x
  3. Step 3: Cross multiply
    43,947.28x = 65,920.94 × 12,360.70
  4. Step 4: Simplify right side
    43,947.28x = 814,829,030.01
  5. Step 5: Solve for x
    x = 814,829,030.01/43,947.28
  6. Step 6: Final answer
    x = 18,541.06

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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.