Home / 21,943.99-30,269.70-13,449.92

Finding the Fourth Proportional to 21,943.99, 30,269.70 and 13,449.92

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Solution

The fourth proportional to 21,943.99, 30,269.70 and 13,449.92 is: 18,552.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,943.99 : 30,269.70 = 13,449.92 : x
  2. Step 2: Convert to fraction form
    21,943.99/30,269.70 = 13,449.92/x
  3. Step 3: Cross multiply
    21,943.99x = 30,269.70 × 13,449.92
  4. Step 4: Simplify right side
    21,943.99x = 407,125,043.42
  5. Step 5: Solve for x
    x = 407,125,043.42/21,943.99
  6. Step 6: Final answer
    x = 18,552.92

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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.