Home / 40,887.75-61,331.63-12,808.04

Finding the Fourth Proportional to 40,887.75, 61,331.63 and 12,808.04

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Solution

The fourth proportional to 40,887.75, 61,331.63 and 12,808.04 is: 19,212.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,887.75 : 61,331.63 = 12,808.04 : x
  2. Step 2: Convert to fraction form
    40,887.75/61,331.63 = 12,808.04/x
  3. Step 3: Cross multiply
    40,887.75x = 61,331.63 × 12,808.04
  4. Step 4: Simplify right side
    40,887.75x = 785,538,016.64
  5. Step 5: Solve for x
    x = 785,538,016.64/40,887.75
  6. Step 6: Final answer
    x = 19,212.06

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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.