Home / 40,713.96-61,071-11,131.80

Finding the Fourth Proportional to 40,713.96, 61,071 and 11,131.80

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Solution

The fourth proportional to 40,713.96, 61,071 and 11,131.80 is: 16,697.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,713.96 : 61,071 = 11,131.80 : x
  2. Step 2: Convert to fraction form
    40,713.96/61,071 = 11,131.80/x
  3. Step 3: Cross multiply
    40,713.96x = 61,071 × 11,131.80
  4. Step 4: Simplify right side
    40,713.96x = 679,830,157.80
  5. Step 5: Solve for x
    x = 679,830,157.80/40,713.96
  6. Step 6: Final answer
    x = 16,697.72

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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.