Home / 18,901.25-28,343.69-5,750.57

Finding the Fourth Proportional to 18,901.25, 28,343.69 and 5,750.57

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Solution

The fourth proportional to 18,901.25, 28,343.69 and 5,750.57 is: 8,623.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,901.25 : 28,343.69 = 5,750.57 : x
  2. Step 2: Convert to fraction form
    18,901.25/28,343.69 = 5,750.57/x
  3. Step 3: Cross multiply
    18,901.25x = 28,343.69 × 5,750.57
  4. Step 4: Simplify right side
    18,901.25x = 162,992,344.65
  5. Step 5: Solve for x
    x = 162,992,344.65/18,901.25
  6. Step 6: Final answer
    x = 8,623.36

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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.