Home / 21,542.63-29,727-12,110.58

Finding the Fourth Proportional to 21,542.63, 29,727 and 12,110.58

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Solution

The fourth proportional to 21,542.63, 29,727 and 12,110.58 is: 16,711.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,542.63 : 29,727 = 12,110.58 : x
  2. Step 2: Convert to fraction form
    21,542.63/29,727 = 12,110.58/x
  3. Step 3: Cross multiply
    21,542.63x = 29,727 × 12,110.58
  4. Step 4: Simplify right side
    21,542.63x = 360,011,211.66
  5. Step 5: Solve for x
    x = 360,011,211.66/21,542.63
  6. Step 6: Final answer
    x = 16,711.58

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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.