Home / 43,818.05-65,720.41-12,224.78

Finding the Fourth Proportional to 43,818.05, 65,720.41 and 12,224.78

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Solution

The fourth proportional to 43,818.05, 65,720.41 and 12,224.78 is: 18,335.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,818.05 : 65,720.41 = 12,224.78 : x
  2. Step 2: Convert to fraction form
    43,818.05/65,720.41 = 12,224.78/x
  3. Step 3: Cross multiply
    43,818.05x = 65,720.41 × 12,224.78
  4. Step 4: Simplify right side
    43,818.05x = 803,417,617.29
  5. Step 5: Solve for x
    x = 803,417,617.29/43,818.05
  6. Step 6: Final answer
    x = 18,335.31

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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.