Home / 28,960.31-39,963.30-16,384.25

Finding the Fourth Proportional to 28,960.31, 39,963.30 and 16,384.25

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Solution

The fourth proportional to 28,960.31, 39,963.30 and 16,384.25 is: 22,609.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,960.31 : 39,963.30 = 16,384.25 : x
  2. Step 2: Convert to fraction form
    28,960.31/39,963.30 = 16,384.25/x
  3. Step 3: Cross multiply
    28,960.31x = 39,963.30 × 16,384.25
  4. Step 4: Simplify right side
    28,960.31x = 654,768,698.03
  5. Step 5: Solve for x
    x = 654,768,698.03/28,960.31
  6. Step 6: Final answer
    x = 22,609.17

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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.