Home / 39,080.45-58,633.23-12,779.21

Finding the Fourth Proportional to 39,080.45, 58,633.23 and 12,779.21

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Solution

The fourth proportional to 39,080.45, 58,633.23 and 12,779.21 is: 19,172.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,080.45 : 58,633.23 = 12,779.21 : x
  2. Step 2: Convert to fraction form
    39,080.45/58,633.23 = 12,779.21/x
  3. Step 3: Cross multiply
    39,080.45x = 58,633.23 × 12,779.21
  4. Step 4: Simplify right side
    39,080.45x = 749,286,359.15
  5. Step 5: Solve for x
    x = 749,286,359.15/39,080.45
  6. Step 6: Final answer
    x = 19,172.92

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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.