Home / 20,507.12-30,740.52-7,357.04

Finding the Fourth Proportional to 20,507.12, 30,740.52 and 7,357.04

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Solution

The fourth proportional to 20,507.12, 30,740.52 and 7,357.04 is: 11,028.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,507.12 : 30,740.52 = 7,357.04 : x
  2. Step 2: Convert to fraction form
    20,507.12/30,740.52 = 7,357.04/x
  3. Step 3: Cross multiply
    20,507.12x = 30,740.52 × 7,357.04
  4. Step 4: Simplify right side
    20,507.12x = 226,159,235.26
  5. Step 5: Solve for x
    x = 226,159,235.26/20,507.12
  6. Step 6: Final answer
    x = 11,028.33

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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.