Home / 43,990.64-65,979.28-14,407.82

Finding the Fourth Proportional to 43,990.64, 65,979.28 and 14,407.82

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Solution

The fourth proportional to 43,990.64, 65,979.28 and 14,407.82 is: 21,609.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,990.64 : 65,979.28 = 14,407.82 : x
  2. Step 2: Convert to fraction form
    43,990.64/65,979.28 = 14,407.82/x
  3. Step 3: Cross multiply
    43,990.64x = 65,979.28 × 14,407.82
  4. Step 4: Simplify right side
    43,990.64x = 950,617,718.90
  5. Step 5: Solve for x
    x = 950,617,718.90/43,990.64
  6. Step 6: Final answer
    x = 21,609.54

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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.