Home / 18,303.30-27,485.32-11,421.54

Finding the Fourth Proportional to 18,303.30, 27,485.32 and 11,421.54

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Solution

The fourth proportional to 18,303.30, 27,485.32 and 11,421.54 is: 17,151.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,303.30 : 27,485.32 = 11,421.54 : x
  2. Step 2: Convert to fraction form
    18,303.30/27,485.32 = 11,421.54/x
  3. Step 3: Cross multiply
    18,303.30x = 27,485.32 × 11,421.54
  4. Step 4: Simplify right side
    18,303.30x = 313,924,624.69
  5. Step 5: Solve for x
    x = 313,924,624.69/18,303.30
  6. Step 6: Final answer
    x = 17,151.26

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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.