Home / 31,512.93-43,473.68-21,300.69

Finding the Fourth Proportional to 31,512.93, 43,473.68 and 21,300.69

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Solution

The fourth proportional to 31,512.93, 43,473.68 and 21,300.69 is: 29,385.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,512.93 : 43,473.68 = 21,300.69 : x
  2. Step 2: Convert to fraction form
    31,512.93/43,473.68 = 21,300.69/x
  3. Step 3: Cross multiply
    31,512.93x = 43,473.68 × 21,300.69
  4. Step 4: Simplify right side
    31,512.93x = 926,019,274.34
  5. Step 5: Solve for x
    x = 926,019,274.34/31,512.93
  6. Step 6: Final answer
    x = 29,385.38

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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.