Home / 28,513.56-39,348-16,580.64

Finding the Fourth Proportional to 28,513.56, 39,348 and 16,580.64

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Solution

The fourth proportional to 28,513.56, 39,348 and 16,580.64 is: 22,880.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,513.56 : 39,348 = 16,580.64 : x
  2. Step 2: Convert to fraction form
    28,513.56/39,348 = 16,580.64/x
  3. Step 3: Cross multiply
    28,513.56x = 39,348 × 16,580.64
  4. Step 4: Simplify right side
    28,513.56x = 652,415,022.72
  5. Step 5: Solve for x
    x = 652,415,022.72/28,513.56
  6. Step 6: Final answer
    x = 22,880.87

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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.