Home / 28,513.94-39,349.24-15,938.69

Finding the Fourth Proportional to 28,513.94, 39,349.24 and 15,938.69

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Solution

The fourth proportional to 28,513.94, 39,349.24 and 15,938.69 is: 21,995.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,513.94 : 39,349.24 = 15,938.69 : x
  2. Step 2: Convert to fraction form
    28,513.94/39,349.24 = 15,938.69/x
  3. Step 3: Cross multiply
    28,513.94x = 39,349.24 × 15,938.69
  4. Step 4: Simplify right side
    28,513.94x = 627,175,101.50
  5. Step 5: Solve for x
    x = 627,175,101.50/28,513.94
  6. Step 6: Final answer
    x = 21,995.39

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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.