Home / 19,722.58-27,216.80-10,769.84

Finding the Fourth Proportional to 19,722.58, 27,216.80 and 10,769.84

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Solution

The fourth proportional to 19,722.58, 27,216.80 and 10,769.84 is: 14,862.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,722.58 : 27,216.80 = 10,769.84 : x
  2. Step 2: Convert to fraction form
    19,722.58/27,216.80 = 10,769.84/x
  3. Step 3: Cross multiply
    19,722.58x = 27,216.80 × 10,769.84
  4. Step 4: Simplify right side
    19,722.58x = 293,120,581.31
  5. Step 5: Solve for x
    x = 293,120,581.31/19,722.58
  6. Step 6: Final answer
    x = 14,862.18

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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.