Home / 28,661.24-39,551.84-15,913.68

Finding the Fourth Proportional to 28,661.24, 39,551.84 and 15,913.68

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Solution

The fourth proportional to 28,661.24, 39,551.84 and 15,913.68 is: 21,960.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,661.24 : 39,551.84 = 15,913.68 : x
  2. Step 2: Convert to fraction form
    28,661.24/39,551.84 = 15,913.68/x
  3. Step 3: Cross multiply
    28,661.24x = 39,551.84 × 15,913.68
  4. Step 4: Simplify right side
    28,661.24x = 629,415,325.17
  5. Step 5: Solve for x
    x = 629,415,325.17/28,661.24
  6. Step 6: Final answer
    x = 21,960.51

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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.