Home / 43,939.05-65,914.98-13,943.25

Finding the Fourth Proportional to 43,939.05, 65,914.98 and 13,943.25

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Solution

The fourth proportional to 43,939.05, 65,914.98 and 13,943.25 is: 20,916.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,939.05 : 65,914.98 = 13,943.25 : x
  2. Step 2: Convert to fraction form
    43,939.05/65,914.98 = 13,943.25/x
  3. Step 3: Cross multiply
    43,939.05x = 65,914.98 × 13,943.25
  4. Step 4: Simplify right side
    43,939.05x = 919,069,044.89
  5. Step 5: Solve for x
    x = 919,069,044.89/43,939.05
  6. Step 6: Final answer
    x = 20,916.91

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1.5x scale

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.