Home / 20,360.05-30,535.16-8,507.42

Finding the Fourth Proportional to 20,360.05, 30,535.16 and 8,507.42

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Solution

The fourth proportional to 20,360.05, 30,535.16 and 8,507.42 is: 12,759.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,360.05 : 30,535.16 = 8,507.42 : x
  2. Step 2: Convert to fraction form
    20,360.05/30,535.16 = 8,507.42/x
  3. Step 3: Cross multiply
    20,360.05x = 30,535.16 × 8,507.42
  4. Step 4: Simplify right side
    20,360.05x = 259,775,430.89
  5. Step 5: Solve for x
    x = 259,775,430.89/20,360.05
  6. Step 6: Final answer
    x = 12,759.08

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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.