Home / 20,133.18-30,200.07-6,985.97

Finding the Fourth Proportional to 20,133.18, 30,200.07 and 6,985.97

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Solution

The fourth proportional to 20,133.18, 30,200.07 and 6,985.97 is: 10,479.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,133.18 : 30,200.07 = 6,985.97 : x
  2. Step 2: Convert to fraction form
    20,133.18/30,200.07 = 6,985.97/x
  3. Step 3: Cross multiply
    20,133.18x = 30,200.07 × 6,985.97
  4. Step 4: Simplify right side
    20,133.18x = 210,976,632.02
  5. Step 5: Solve for x
    x = 210,976,632.02/20,133.18
  6. Step 6: Final answer
    x = 10,479.05

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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.