Home / 39,474.45-54,474.75-21,325.18

Finding the Fourth Proportional to 39,474.45, 54,474.75 and 21,325.18

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Solution

The fourth proportional to 39,474.45, 54,474.75 and 21,325.18 is: 29,428.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,474.45 : 54,474.75 = 21,325.18 : x
  2. Step 2: Convert to fraction form
    39,474.45/54,474.75 = 21,325.18/x
  3. Step 3: Cross multiply
    39,474.45x = 54,474.75 × 21,325.18
  4. Step 4: Simplify right side
    39,474.45x = 1,161,683,713.02
  5. Step 5: Solve for x
    x = 1,161,683,713.02/39,474.45
  6. Step 6: Final answer
    x = 29,428.75

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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.