Home / 43,571.10-65,350.46-13,985.10

Finding the Fourth Proportional to 43,571.10, 65,350.46 and 13,985.10

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Solution

The fourth proportional to 43,571.10, 65,350.46 and 13,985.10 is: 20,975.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,571.10 : 65,350.46 = 13,985.10 : x
  2. Step 2: Convert to fraction form
    43,571.10/65,350.46 = 13,985.10/x
  3. Step 3: Cross multiply
    43,571.10x = 65,350.46 × 13,985.10
  4. Step 4: Simplify right side
    43,571.10x = 913,932,718.15
  5. Step 5: Solve for x
    x = 913,932,718.15/43,571.10
  6. Step 6: Final answer
    x = 20,975.66

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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.