Home / 20,373.30-28,035.45-18,021.06

Finding the Fourth Proportional to 20,373.30, 28,035.45 and 18,021.06

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Solution

The fourth proportional to 20,373.30, 28,035.45 and 18,021.06 is: 24,798.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,373.30 : 28,035.45 = 18,021.06 : x
  2. Step 2: Convert to fraction form
    20,373.30/28,035.45 = 18,021.06/x
  3. Step 3: Cross multiply
    20,373.30x = 28,035.45 × 18,021.06
  4. Step 4: Simplify right side
    20,373.30x = 505,228,526.58
  5. Step 5: Solve for x
    x = 505,228,526.58/20,373.30
  6. Step 6: Final answer
    x = 24,798.56

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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.