Home / 39,266.89-54,188.01-21,361.86

Finding the Fourth Proportional to 39,266.89, 54,188.01 and 21,361.86

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Solution

The fourth proportional to 39,266.89, 54,188.01 and 21,361.86 is: 29,479.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,266.89 : 54,188.01 = 21,361.86 : x
  2. Step 2: Convert to fraction form
    39,266.89/54,188.01 = 21,361.86/x
  3. Step 3: Cross multiply
    39,266.89x = 54,188.01 × 21,361.86
  4. Step 4: Simplify right side
    39,266.89x = 1,157,556,683.30
  5. Step 5: Solve for x
    x = 1,157,556,683.30/39,266.89
  6. Step 6: Final answer
    x = 29,479.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.