Home / 25,121.37-34,667.51-15,055.66

Finding the Fourth Proportional to 25,121.37, 34,667.51 and 15,055.66

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Solution

The fourth proportional to 25,121.37, 34,667.51 and 15,055.66 is: 20,776.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,121.37 : 34,667.51 = 15,055.66 : x
  2. Step 2: Convert to fraction form
    25,121.37/34,667.51 = 15,055.66/x
  3. Step 3: Cross multiply
    25,121.37x = 34,667.51 × 15,055.66
  4. Step 4: Simplify right side
    25,121.37x = 521,942,070.27
  5. Step 5: Solve for x
    x = 521,942,070.27/25,121.37
  6. Step 6: Final answer
    x = 20,776.82

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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.