Home / 18,878.36-28,317.60-5,730.71

Finding the Fourth Proportional to 18,878.36, 28,317.60 and 5,730.71

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Solution

The fourth proportional to 18,878.36, 28,317.60 and 5,730.71 is: 8,596.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,878.36 : 28,317.60 = 5,730.71 : x
  2. Step 2: Convert to fraction form
    18,878.36/28,317.60 = 5,730.71/x
  3. Step 3: Cross multiply
    18,878.36x = 28,317.60 × 5,730.71
  4. Step 4: Simplify right side
    18,878.36x = 162,279,811.91
  5. Step 5: Solve for x
    x = 162,279,811.91/18,878.36
  6. Step 6: Final answer
    x = 8,596.08

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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.