Home / 20,253.54-30,377.88-5,461.32

Finding the Fourth Proportional to 20,253.54, 30,377.88 and 5,461.32

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Solution

The fourth proportional to 20,253.54, 30,377.88 and 5,461.32 is: 8,191.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,253.54 : 30,377.88 = 5,461.32 : x
  2. Step 2: Convert to fraction form
    20,253.54/30,377.88 = 5,461.32/x
  3. Step 3: Cross multiply
    20,253.54x = 30,377.88 × 5,461.32
  4. Step 4: Simplify right side
    20,253.54x = 165,903,323.60
  5. Step 5: Solve for x
    x = 165,903,323.60/20,253.54
  6. Step 6: Final answer
    x = 8,191.32

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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.