Home / 43,501.38-65,245.98-13,921.80

Finding the Fourth Proportional to 43,501.38, 65,245.98 and 13,921.80

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Solution

The fourth proportional to 43,501.38, 65,245.98 and 13,921.80 is: 20,880.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,501.38 : 65,245.98 = 13,921.80 : x
  2. Step 2: Convert to fraction form
    43,501.38/65,245.98 = 13,921.80/x
  3. Step 3: Cross multiply
    43,501.38x = 65,245.98 × 13,921.80
  4. Step 4: Simplify right side
    43,501.38x = 908,341,484.36
  5. Step 5: Solve for x
    x = 908,341,484.36/43,501.38
  6. Step 6: Final answer
    x = 20,880.75

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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.