Home / 39,147.60-58,675.86-19,438.68

Finding the Fourth Proportional to 39,147.60, 58,675.86 and 19,438.68

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Solution

The fourth proportional to 39,147.60, 58,675.86 and 19,438.68 is: 29,135.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,147.60 : 58,675.86 = 19,438.68 : x
  2. Step 2: Convert to fraction form
    39,147.60/58,675.86 = 19,438.68/x
  3. Step 3: Cross multiply
    39,147.60x = 58,675.86 × 19,438.68
  4. Step 4: Simplify right side
    39,147.60x = 1,140,581,266.26
  5. Step 5: Solve for x
    x = 1,140,581,266.26/39,147.60
  6. Step 6: Final answer
    x = 29,135.41

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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.