Home / 20,586.08-30,878.88-5,003.72

Finding the Fourth Proportional to 20,586.08, 30,878.88 and 5,003.72

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Solution

The fourth proportional to 20,586.08, 30,878.88 and 5,003.72 is: 7,505.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,586.08 : 30,878.88 = 5,003.72 : x
  2. Step 2: Convert to fraction form
    20,586.08/30,878.88 = 5,003.72/x
  3. Step 3: Cross multiply
    20,586.08x = 30,878.88 × 5,003.72
  4. Step 4: Simplify right side
    20,586.08x = 154,509,269.43
  5. Step 5: Solve for x
    x = 154,509,269.43/20,586.08
  6. Step 6: Final answer
    x = 7,505.52

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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.