Home / 22,750.43-31,426.26-20,628.37

Finding the Fourth Proportional to 22,750.43, 31,426.26 and 20,628.37

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Solution

The fourth proportional to 22,750.43, 31,426.26 and 20,628.37 is: 28,494.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,750.43 : 31,426.26 = 20,628.37 : x
  2. Step 2: Convert to fraction form
    22,750.43/31,426.26 = 20,628.37/x
  3. Step 3: Cross multiply
    22,750.43x = 31,426.26 × 20,628.37
  4. Step 4: Simplify right side
    22,750.43x = 648,272,361.86
  5. Step 5: Solve for x
    x = 648,272,361.86/22,750.43
  6. Step 6: Final answer
    x = 28,494.95

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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.