Home / 28,884.07-39,860.13-16,947.64

Finding the Fourth Proportional to 28,884.07, 39,860.13 and 16,947.64

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Solution

The fourth proportional to 28,884.07, 39,860.13 and 16,947.64 is: 23,387.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,884.07 : 39,860.13 = 16,947.64 : x
  2. Step 2: Convert to fraction form
    28,884.07/39,860.13 = 16,947.64/x
  3. Step 3: Cross multiply
    28,884.07x = 39,860.13 × 16,947.64
  4. Step 4: Simplify right side
    28,884.07x = 675,535,133.59
  5. Step 5: Solve for x
    x = 675,535,133.59/28,884.07
  6. Step 6: Final answer
    x = 23,387.81

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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.