Home / 21,472.12-29,628.66-12,518.92

Finding the Fourth Proportional to 21,472.12, 29,628.66 and 12,518.92

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Solution

The fourth proportional to 21,472.12, 29,628.66 and 12,518.92 is: 17,274.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,472.12 : 29,628.66 = 12,518.92 : x
  2. Step 2: Convert to fraction form
    21,472.12/29,628.66 = 12,518.92/x
  3. Step 3: Cross multiply
    21,472.12x = 29,628.66 × 12,518.92
  4. Step 4: Simplify right side
    21,472.12x = 370,918,824.25
  5. Step 5: Solve for x
    x = 370,918,824.25/21,472.12
  6. Step 6: Final answer
    x = 17,274.44

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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.