Home / 19,721.95-27,216.07-10,769.42

Finding the Fourth Proportional to 19,721.95, 27,216.07 and 10,769.42

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Solution

The fourth proportional to 19,721.95, 27,216.07 and 10,769.42 is: 14,861.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,721.95 : 27,216.07 = 10,769.42 : x
  2. Step 2: Convert to fraction form
    19,721.95/27,216.07 = 10,769.42/x
  3. Step 3: Cross multiply
    19,721.95x = 27,216.07 × 10,769.42
  4. Step 4: Simplify right side
    19,721.95x = 293,101,329.70
  5. Step 5: Solve for x
    x = 293,101,329.70/19,721.95
  6. Step 6: Final answer
    x = 14,861.68

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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.