Home / 31,129.12-46,693.53-14,479.98

Finding the Fourth Proportional to 31,129.12, 46,693.53 and 14,479.98

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Solution

The fourth proportional to 31,129.12, 46,693.53 and 14,479.98 is: 21,719.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,129.12 : 46,693.53 = 14,479.98 : x
  2. Step 2: Convert to fraction form
    31,129.12/46,693.53 = 14,479.98/x
  3. Step 3: Cross multiply
    31,129.12x = 46,693.53 × 14,479.98
  4. Step 4: Simplify right side
    31,129.12x = 676,121,205.43
  5. Step 5: Solve for x
    x = 676,121,205.43/31,129.12
  6. Step 6: Final answer
    x = 21,719.89

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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.