Home / 28,655.39-39,544.58-15,908.75

Finding the Fourth Proportional to 28,655.39, 39,544.58 and 15,908.75

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Solution

The fourth proportional to 28,655.39, 39,544.58 and 15,908.75 is: 21,954.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,655.39 : 39,544.58 = 15,908.75 : x
  2. Step 2: Convert to fraction form
    28,655.39/39,544.58 = 15,908.75/x
  3. Step 3: Cross multiply
    28,655.39x = 39,544.58 × 15,908.75
  4. Step 4: Simplify right side
    28,655.39x = 629,104,975.71
  5. Step 5: Solve for x
    x = 629,104,975.71/28,655.39
  6. Step 6: Final answer
    x = 21,954.16

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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.