Home / 18,880.35-28,320.57-5,732.82

Finding the Fourth Proportional to 18,880.35, 28,320.57 and 5,732.82

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Solution

The fourth proportional to 18,880.35, 28,320.57 and 5,732.82 is: 8,599.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,880.35 : 28,320.57 = 5,732.82 : x
  2. Step 2: Convert to fraction form
    18,880.35/28,320.57 = 5,732.82/x
  3. Step 3: Cross multiply
    18,880.35x = 28,320.57 × 5,732.82
  4. Step 4: Simplify right side
    18,880.35x = 162,356,730.11
  5. Step 5: Solve for x
    x = 162,356,730.11/18,880.35
  6. Step 6: Final answer
    x = 8,599.24

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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.