Home / 21,028.04-31,540.54-5,445.16

Finding the Fourth Proportional to 21,028.04, 31,540.54 and 5,445.16

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Solution

The fourth proportional to 21,028.04, 31,540.54 and 5,445.16 is: 8,167.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,028.04 : 31,540.54 = 5,445.16 : x
  2. Step 2: Convert to fraction form
    21,028.04/31,540.54 = 5,445.16/x
  3. Step 3: Cross multiply
    21,028.04x = 31,540.54 × 5,445.16
  4. Step 4: Simplify right side
    21,028.04x = 171,743,286.79
  5. Step 5: Solve for x
    x = 171,743,286.79/21,028.04
  6. Step 6: Final answer
    x = 8,167.35

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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.