Home / 21,157.53-31,736.30-5,575.16

Finding the Fourth Proportional to 21,157.53, 31,736.30 and 5,575.16

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Solution

The fourth proportional to 21,157.53, 31,736.30 and 5,575.16 is: 8,362.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,157.53 : 31,736.30 = 5,575.16 : x
  2. Step 2: Convert to fraction form
    21,157.53/31,736.30 = 5,575.16/x
  3. Step 3: Cross multiply
    21,157.53x = 31,736.30 × 5,575.16
  4. Step 4: Simplify right side
    21,157.53x = 176,934,763.75
  5. Step 5: Solve for x
    x = 176,934,763.75/21,157.53
  6. Step 6: Final answer
    x = 8,362.73

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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.