Home / 39,266.93-54,187.13-21,361.48

Finding the Fourth Proportional to 39,266.93, 54,187.13 and 21,361.48

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Solution

The fourth proportional to 39,266.93, 54,187.13 and 21,361.48 is: 29,478.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,266.93 : 54,187.13 = 21,361.48 : x
  2. Step 2: Convert to fraction form
    39,266.93/54,187.13 = 21,361.48/x
  3. Step 3: Cross multiply
    39,266.93x = 54,187.13 × 21,361.48
  4. Step 4: Simplify right side
    39,266.93x = 1,157,517,211.69
  5. Step 5: Solve for x
    x = 1,157,517,211.69/39,266.93
  6. Step 6: Final answer
    x = 29,478.17

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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.