Home / 39,205.87-54,103.43-21,301.16

Finding the Fourth Proportional to 39,205.87, 54,103.43 and 21,301.16

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Solution

The fourth proportional to 39,205.87, 54,103.43 and 21,301.16 is: 29,395.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,205.87 : 54,103.43 = 21,301.16 : x
  2. Step 2: Convert to fraction form
    39,205.87/54,103.43 = 21,301.16/x
  3. Step 3: Cross multiply
    39,205.87x = 54,103.43 × 21,301.16
  4. Step 4: Simplify right side
    39,205.87x = 1,152,465,601.71
  5. Step 5: Solve for x
    x = 1,152,465,601.71/39,205.87
  6. Step 6: Final answer
    x = 29,395.23

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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.