Home / 31,080.88-46,590.96-12,354.64

Finding the Fourth Proportional to 31,080.88, 46,590.96 and 12,354.64

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Solution

The fourth proportional to 31,080.88, 46,590.96 and 12,354.64 is: 18,519.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,080.88 : 46,590.96 = 12,354.64 : x
  2. Step 2: Convert to fraction form
    31,080.88/46,590.96 = 12,354.64/x
  3. Step 3: Cross multiply
    31,080.88x = 46,590.96 × 12,354.64
  4. Step 4: Simplify right side
    31,080.88x = 575,614,538.05
  5. Step 5: Solve for x
    x = 575,614,538.05/31,080.88
  6. Step 6: Final answer
    x = 18,519.89

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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.