Home / 28,648.81-39,540.41-18,041.77

Finding the Fourth Proportional to 28,648.81, 39,540.41 and 18,041.77

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Solution

The fourth proportional to 28,648.81, 39,540.41 and 18,041.77 is: 24,900.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,648.81 : 39,540.41 = 18,041.77 : x
  2. Step 2: Convert to fraction form
    28,648.81/39,540.41 = 18,041.77/x
  3. Step 3: Cross multiply
    28,648.81x = 39,540.41 × 18,041.77
  4. Step 4: Simplify right side
    28,648.81x = 713,378,982.93
  5. Step 5: Solve for x
    x = 713,378,982.93/28,648.81
  6. Step 6: Final answer
    x = 24,900.82

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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.