Home / 19,328.68-26,727.27-15,342.88

Finding the Fourth Proportional to 19,328.68, 26,727.27 and 15,342.88

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Solution

The fourth proportional to 19,328.68, 26,727.27 and 15,342.88 is: 21,215.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,328.68 : 26,727.27 = 15,342.88 : x
  2. Step 2: Convert to fraction form
    19,328.68/26,727.27 = 15,342.88/x
  3. Step 3: Cross multiply
    19,328.68x = 26,727.27 × 15,342.88
  4. Step 4: Simplify right side
    19,328.68x = 410,073,296.34
  5. Step 5: Solve for x
    x = 410,073,296.34/19,328.68
  6. Step 6: Final answer
    x = 21,215.79

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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.