Home / 20,117.03-30,176.90-5,325.76

Finding the Fourth Proportional to 20,117.03, 30,176.90 and 5,325.76

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Solution

The fourth proportional to 20,117.03, 30,176.90 and 5,325.76 is: 7,988.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,117.03 : 30,176.90 = 5,325.76 : x
  2. Step 2: Convert to fraction form
    20,117.03/30,176.90 = 5,325.76/x
  3. Step 3: Cross multiply
    20,117.03x = 30,176.90 × 5,325.76
  4. Step 4: Simplify right side
    20,117.03x = 160,714,749.43
  5. Step 5: Solve for x
    x = 160,714,749.43/20,117.03
  6. Step 6: Final answer
    x = 7,988.99

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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.