Home / 20,095.57-30,140.39-5,305.52

Finding the Fourth Proportional to 20,095.57, 30,140.39 and 5,305.52

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Solution

The fourth proportional to 20,095.57, 30,140.39 and 5,305.52 is: 7,957.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,095.57 : 30,140.39 = 5,305.52 : x
  2. Step 2: Convert to fraction form
    20,095.57/30,140.39 = 5,305.52/x
  3. Step 3: Cross multiply
    20,095.57x = 30,140.39 × 5,305.52
  4. Step 4: Simplify right side
    20,095.57x = 159,910,530.57
  5. Step 5: Solve for x
    x = 159,910,530.57/20,095.57
  6. Step 6: Final answer
    x = 7,957.50

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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.