Home / 20,535.43-30,798.50-9,431.45

Finding the Fourth Proportional to 20,535.43, 30,798.50 and 9,431.45

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Solution

The fourth proportional to 20,535.43, 30,798.50 and 9,431.45 is: 14,145.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,535.43 : 30,798.50 = 9,431.45 : x
  2. Step 2: Convert to fraction form
    20,535.43/30,798.50 = 9,431.45/x
  3. Step 3: Cross multiply
    20,535.43x = 30,798.50 × 9,431.45
  4. Step 4: Simplify right side
    20,535.43x = 290,474,358.83
  5. Step 5: Solve for x
    x = 290,474,358.83/20,535.43
  6. Step 6: Final answer
    x = 14,145.03

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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.