Home / 21,107.93-31,587.71-16,679.25

Finding the Fourth Proportional to 21,107.93, 31,587.71 and 16,679.25

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Solution

The fourth proportional to 21,107.93, 31,587.71 and 16,679.25 is: 24,960.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,107.93 : 31,587.71 = 16,679.25 : x
  2. Step 2: Convert to fraction form
    21,107.93/31,587.71 = 16,679.25/x
  3. Step 3: Cross multiply
    21,107.93x = 31,587.71 × 16,679.25
  4. Step 4: Simplify right side
    21,107.93x = 526,859,228.62
  5. Step 5: Solve for x
    x = 526,859,228.62/21,107.93
  6. Step 6: Final answer
    x = 24,960.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.