Home / 31,489.12-47,262.84-15,917.68

Finding the Fourth Proportional to 31,489.12, 47,262.84 and 15,917.68

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Solution

The fourth proportional to 31,489.12, 47,262.84 and 15,917.68 is: 23,891.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,489.12 : 47,262.84 = 15,917.68 : x
  2. Step 2: Convert to fraction form
    31,489.12/47,262.84 = 15,917.68/x
  3. Step 3: Cross multiply
    31,489.12x = 47,262.84 × 15,917.68
  4. Step 4: Simplify right side
    31,489.12x = 752,314,763.01
  5. Step 5: Solve for x
    x = 752,314,763.01/31,489.12
  6. Step 6: Final answer
    x = 23,891.26

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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.