Home / 20,574.48-30,855.31-7,425.14

Finding the Fourth Proportional to 20,574.48, 30,855.31 and 7,425.14

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Solution

The fourth proportional to 20,574.48, 30,855.31 and 7,425.14 is: 11,135.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,574.48 : 30,855.31 = 7,425.14 : x
  2. Step 2: Convert to fraction form
    20,574.48/30,855.31 = 7,425.14/x
  3. Step 3: Cross multiply
    20,574.48x = 30,855.31 × 7,425.14
  4. Step 4: Simplify right side
    20,574.48x = 229,104,996.49
  5. Step 5: Solve for x
    x = 229,104,996.49/20,574.48
  6. Step 6: Final answer
    x = 11,135.40

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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.