Home / 21,033.40-31,556.72-6,242.40

Finding the Fourth Proportional to 21,033.40, 31,556.72 and 6,242.40

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Solution

The fourth proportional to 21,033.40, 31,556.72 and 6,242.40 is: 9,365.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,033.40 : 31,556.72 = 6,242.40 : x
  2. Step 2: Convert to fraction form
    21,033.40/31,556.72 = 6,242.40/x
  3. Step 3: Cross multiply
    21,033.40x = 31,556.72 × 6,242.40
  4. Step 4: Simplify right side
    21,033.40x = 196,989,668.93
  5. Step 5: Solve for x
    x = 196,989,668.93/21,033.40
  6. Step 6: Final answer
    x = 9,365.56

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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.