Home / 20,966.67-31,444.71-12,535.59

Finding the Fourth Proportional to 20,966.67, 31,444.71 and 12,535.59

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Solution

The fourth proportional to 20,966.67, 31,444.71 and 12,535.59 is: 18,800.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,966.67 : 31,444.71 = 12,535.59 : x
  2. Step 2: Convert to fraction form
    20,966.67/31,444.71 = 12,535.59/x
  3. Step 3: Cross multiply
    20,966.67x = 31,444.71 × 12,535.59
  4. Step 4: Simplify right side
    20,966.67x = 394,177,992.23
  5. Step 5: Solve for x
    x = 394,177,992.23/20,966.67
  6. Step 6: Final answer
    x = 18,800.22

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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.