Home / 39,509.61-54,525.29-21,604.43

Finding the Fourth Proportional to 39,509.61, 54,525.29 and 21,604.43

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Solution

The fourth proportional to 39,509.61, 54,525.29 and 21,604.43 is: 29,815.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,509.61 : 54,525.29 = 21,604.43 : x
  2. Step 2: Convert to fraction form
    39,509.61/54,525.29 = 21,604.43/x
  3. Step 3: Cross multiply
    39,509.61x = 54,525.29 × 21,604.43
  4. Step 4: Simplify right side
    39,509.61x = 1,177,987,430.39
  5. Step 5: Solve for x
    x = 1,177,987,430.39/39,509.61
  6. Step 6: Final answer
    x = 29,815.21

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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.