Home / 31,070.92-46,582.08-21,185.68

Finding the Fourth Proportional to 31,070.92, 46,582.08 and 21,185.68

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Solution

The fourth proportional to 31,070.92, 46,582.08 and 21,185.68 is: 31,761.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,070.92 : 46,582.08 = 21,185.68 : x
  2. Step 2: Convert to fraction form
    31,070.92/46,582.08 = 21,185.68/x
  3. Step 3: Cross multiply
    31,070.92x = 46,582.08 × 21,185.68
  4. Step 4: Simplify right side
    31,070.92x = 986,873,040.61
  5. Step 5: Solve for x
    x = 986,873,040.61/31,070.92
  6. Step 6: Final answer
    x = 31,761.95

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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.