Home / 31,847.56-43,918.86-21,087.52

Finding the Fourth Proportional to 31,847.56, 43,918.86 and 21,087.52

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Solution

The fourth proportional to 31,847.56, 43,918.86 and 21,087.52 is: 29,080.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,847.56 : 43,918.86 = 21,087.52 : x
  2. Step 2: Convert to fraction form
    31,847.56/43,918.86 = 21,087.52/x
  3. Step 3: Cross multiply
    31,847.56x = 43,918.86 × 21,087.52
  4. Step 4: Simplify right side
    31,847.56x = 926,139,838.63
  5. Step 5: Solve for x
    x = 926,139,838.63/31,847.56
  6. Step 6: Final answer
    x = 29,080.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.