Home / 18,878.09-28,317.21-5,730.57

Finding the Fourth Proportional to 18,878.09, 28,317.21 and 5,730.57

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Solution

The fourth proportional to 18,878.09, 28,317.21 and 5,730.57 is: 8,595.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,878.09 : 28,317.21 = 5,730.57 : x
  2. Step 2: Convert to fraction form
    18,878.09/28,317.21 = 5,730.57/x
  3. Step 3: Cross multiply
    18,878.09x = 28,317.21 × 5,730.57
  4. Step 4: Simplify right side
    18,878.09x = 162,273,754.11
  5. Step 5: Solve for x
    x = 162,273,754.11/18,878.09
  6. Step 6: Final answer
    x = 8,595.88

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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.