Home / 20,176.30-30,232.05-19,009.90

Finding the Fourth Proportional to 20,176.30, 30,232.05 and 19,009.90

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Solution

The fourth proportional to 20,176.30, 30,232.05 and 19,009.90 is: 28,484.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,176.30 : 30,232.05 = 19,009.90 : x
  2. Step 2: Convert to fraction form
    20,176.30/30,232.05 = 19,009.90/x
  3. Step 3: Cross multiply
    20,176.30x = 30,232.05 × 19,009.90
  4. Step 4: Simplify right side
    20,176.30x = 574,708,247.30
  5. Step 5: Solve for x
    x = 574,708,247.30/20,176.30
  6. Step 6: Final answer
    x = 28,484.32

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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.