Home / 28,450.74-39,239.84-18,242.74

Finding the Fourth Proportional to 28,450.74, 39,239.84 and 18,242.74

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Solution

The fourth proportional to 28,450.74, 39,239.84 and 18,242.74 is: 25,160.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,450.74 : 39,239.84 = 18,242.74 : x
  2. Step 2: Convert to fraction form
    28,450.74/39,239.84 = 18,242.74/x
  3. Step 3: Cross multiply
    28,450.74x = 39,239.84 × 18,242.74
  4. Step 4: Simplify right side
    28,450.74x = 715,842,198.76
  5. Step 5: Solve for x
    x = 715,842,198.76/28,450.74
  6. Step 6: Final answer
    x = 25,160.76

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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.