Home / 39,181.68-58,779.84-12,904.92

Finding the Fourth Proportional to 39,181.68, 58,779.84 and 12,904.92

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Solution

The fourth proportional to 39,181.68, 58,779.84 and 12,904.92 is: 19,359.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,181.68 : 58,779.84 = 12,904.92 : x
  2. Step 2: Convert to fraction form
    39,181.68/58,779.84 = 12,904.92/x
  3. Step 3: Cross multiply
    39,181.68x = 58,779.84 × 12,904.92
  4. Step 4: Simplify right side
    39,181.68x = 758,549,132.81
  5. Step 5: Solve for x
    x = 758,549,132.81/39,181.68
  6. Step 6: Final answer
    x = 19,359.79

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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.