Home / 20,133.68-30,200.56-6,986.08

Finding the Fourth Proportional to 20,133.68, 30,200.56 and 6,986.08

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Solution

The fourth proportional to 20,133.68, 30,200.56 and 6,986.08 is: 10,479.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,133.68 : 30,200.56 = 6,986.08 : x
  2. Step 2: Convert to fraction form
    20,133.68/30,200.56 = 6,986.08/x
  3. Step 3: Cross multiply
    20,133.68x = 30,200.56 × 6,986.08
  4. Step 4: Simplify right side
    20,133.68x = 210,983,528.20
  5. Step 5: Solve for x
    x = 210,983,528.20/20,133.68
  6. Step 6: Final answer
    x = 10,479.13

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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.