Home / 27,235.80-37,587.12-20,509.56

Finding the Fourth Proportional to 27,235.80, 37,587.12 and 20,509.56

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Solution

The fourth proportional to 27,235.80, 37,587.12 and 20,509.56 is: 28,304.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,235.80 : 37,587.12 = 20,509.56 : x
  2. Step 2: Convert to fraction form
    27,235.80/37,587.12 = 20,509.56/x
  3. Step 3: Cross multiply
    27,235.80x = 37,587.12 × 20,509.56
  4. Step 4: Simplify right side
    27,235.80x = 770,895,292.87
  5. Step 5: Solve for x
    x = 770,895,292.87/27,235.80
  6. Step 6: Final answer
    x = 28,304.49

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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.