Home / 39,338.16-54,286.36-21,433.16

Finding the Fourth Proportional to 39,338.16, 54,286.36 and 21,433.16

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Solution

The fourth proportional to 39,338.16, 54,286.36 and 21,433.16 is: 29,577.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,338.16 : 54,286.36 = 21,433.16 : x
  2. Step 2: Convert to fraction form
    39,338.16/54,286.36 = 21,433.16/x
  3. Step 3: Cross multiply
    39,338.16x = 54,286.36 × 21,433.16
  4. Step 4: Simplify right side
    39,338.16x = 1,163,528,239.70
  5. Step 5: Solve for x
    x = 1,163,528,239.70/39,338.16
  6. Step 6: Final answer
    x = 29,577.60

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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.