Home / 20,900.03-31,333.55-10,362.79

Finding the Fourth Proportional to 20,900.03, 31,333.55 and 10,362.79

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Solution

The fourth proportional to 20,900.03, 31,333.55 and 10,362.79 is: 15,536.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,900.03 : 31,333.55 = 10,362.79 : x
  2. Step 2: Convert to fraction form
    20,900.03/31,333.55 = 10,362.79/x
  3. Step 3: Cross multiply
    20,900.03x = 31,333.55 × 10,362.79
  4. Step 4: Simplify right side
    20,900.03x = 324,702,841.94
  5. Step 5: Solve for x
    x = 324,702,841.94/20,900.03
  6. Step 6: Final answer
    x = 15,536.00

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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.