Home / 21,212.08-31,818.60-7,361.04

Finding the Fourth Proportional to 21,212.08, 31,818.60 and 7,361.04

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Solution

The fourth proportional to 21,212.08, 31,818.60 and 7,361.04 is: 11,041.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,212.08 : 31,818.60 = 7,361.04 : x
  2. Step 2: Convert to fraction form
    21,212.08/31,818.60 = 7,361.04/x
  3. Step 3: Cross multiply
    21,212.08x = 31,818.60 × 7,361.04
  4. Step 4: Simplify right side
    21,212.08x = 234,217,987.34
  5. Step 5: Solve for x
    x = 234,217,987.34/21,212.08
  6. Step 6: Final answer
    x = 11,041.73

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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.