Home / 39,171.60-58,779-18,394.56

Finding the Fourth Proportional to 39,171.60, 58,779 and 18,394.56

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Solution

The fourth proportional to 39,171.60, 58,779 and 18,394.56 is: 27,601.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,171.60 : 58,779 = 18,394.56 : x
  2. Step 2: Convert to fraction form
    39,171.60/58,779 = 18,394.56/x
  3. Step 3: Cross multiply
    39,171.60x = 58,779 × 18,394.56
  4. Step 4: Simplify right side
    39,171.60x = 1,081,213,842.24
  5. Step 5: Solve for x
    x = 1,081,213,842.24/39,171.60
  6. Step 6: Final answer
    x = 27,601.98

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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.