Home / 20,535.30-30,803.34-9,438.96

Finding the Fourth Proportional to 20,535.30, 30,803.34 and 9,438.96

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Solution

The fourth proportional to 20,535.30, 30,803.34 and 9,438.96 is: 14,158.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,535.30 : 30,803.34 = 9,438.96 : x
  2. Step 2: Convert to fraction form
    20,535.30/30,803.34 = 9,438.96/x
  3. Step 3: Cross multiply
    20,535.30x = 30,803.34 × 9,438.96
  4. Step 4: Simplify right side
    20,535.30x = 290,751,494.13
  5. Step 5: Solve for x
    x = 290,751,494.13/20,535.30
  6. Step 6: Final answer
    x = 14,158.62

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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.