Home / 20,588.87-30,859.20-18,253.34

Finding the Fourth Proportional to 20,588.87, 30,859.20 and 18,253.34

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Solution

The fourth proportional to 20,588.87, 30,859.20 and 18,253.34 is: 27,358.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,588.87 : 30,859.20 = 18,253.34 : x
  2. Step 2: Convert to fraction form
    20,588.87/30,859.20 = 18,253.34/x
  3. Step 3: Cross multiply
    20,588.87x = 30,859.20 × 18,253.34
  4. Step 4: Simplify right side
    20,588.87x = 563,283,315.43
  5. Step 5: Solve for x
    x = 563,283,315.43/20,588.87
  6. Step 6: Final answer
    x = 27,358.64

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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.