Home / 20,176.68-30,267.84-5,386.08

Finding the Fourth Proportional to 20,176.68, 30,267.84 and 5,386.08

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Solution

The fourth proportional to 20,176.68, 30,267.84 and 5,386.08 is: 8,079.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,176.68 : 30,267.84 = 5,386.08 : x
  2. Step 2: Convert to fraction form
    20,176.68/30,267.84 = 5,386.08/x
  3. Step 3: Cross multiply
    20,176.68x = 30,267.84 × 5,386.08
  4. Step 4: Simplify right side
    20,176.68x = 163,025,007.67
  5. Step 5: Solve for x
    x = 163,025,007.67/20,176.68
  6. Step 6: Final answer
    x = 8,079.87

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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.