Home / 20,361.06-30,663.72-17,922.60

Finding the Fourth Proportional to 20,361.06, 30,663.72 and 17,922.60

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Solution

The fourth proportional to 20,361.06, 30,663.72 and 17,922.60 is: 26,991.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,361.06 : 30,663.72 = 17,922.60 : x
  2. Step 2: Convert to fraction form
    20,361.06/30,663.72 = 17,922.60/x
  3. Step 3: Cross multiply
    20,361.06x = 30,663.72 × 17,922.60
  4. Step 4: Simplify right side
    20,361.06x = 549,573,588.07
  5. Step 5: Solve for x
    x = 549,573,588.07/20,361.06
  6. Step 6: Final answer
    x = 26,991.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.