Home / 28,087.65-38,744.37-18,012.42

Finding the Fourth Proportional to 28,087.65, 38,744.37 and 18,012.42

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Solution

The fourth proportional to 28,087.65, 38,744.37 and 18,012.42 is: 24,846.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,087.65 : 38,744.37 = 18,012.42 : x
  2. Step 2: Convert to fraction form
    28,087.65/38,744.37 = 18,012.42/x
  3. Step 3: Cross multiply
    28,087.65x = 38,744.37 × 18,012.42
  4. Step 4: Simplify right side
    28,087.65x = 697,879,865.08
  5. Step 5: Solve for x
    x = 697,879,865.08/28,087.65
  6. Step 6: Final answer
    x = 24,846.50

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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.