Home / 35,779.96-53,678.58-12,405.88

Finding the Fourth Proportional to 35,779.96, 53,678.58 and 12,405.88

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Solution

The fourth proportional to 35,779.96, 53,678.58 and 12,405.88 is: 18,611.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,779.96 : 53,678.58 = 12,405.88 : x
  2. Step 2: Convert to fraction form
    35,779.96/53,678.58 = 12,405.88/x
  3. Step 3: Cross multiply
    35,779.96x = 53,678.58 × 12,405.88
  4. Step 4: Simplify right side
    35,779.96x = 665,930,022.05
  5. Step 5: Solve for x
    x = 665,930,022.05/35,779.96
  6. Step 6: Final answer
    x = 18,611.82

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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.