Home / 19,743.68-27,238.48-11,355.68

Finding the Fourth Proportional to 19,743.68, 27,238.48 and 11,355.68

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Solution

The fourth proportional to 19,743.68, 27,238.48 and 11,355.68 is: 15,666.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,743.68 : 27,238.48 = 11,355.68 : x
  2. Step 2: Convert to fraction form
    19,743.68/27,238.48 = 11,355.68/x
  3. Step 3: Cross multiply
    19,743.68x = 27,238.48 × 11,355.68
  4. Step 4: Simplify right side
    19,743.68x = 309,311,462.57
  5. Step 5: Solve for x
    x = 309,311,462.57/19,743.68
  6. Step 6: Final answer
    x = 15,666.35

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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.