Home / 19,929.27-27,502.40-10,976.75

Finding the Fourth Proportional to 19,929.27, 27,502.40 and 10,976.75

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Solution

The fourth proportional to 19,929.27, 27,502.40 and 10,976.75 is: 15,147.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,929.27 : 27,502.40 = 10,976.75 : x
  2. Step 2: Convert to fraction form
    19,929.27/27,502.40 = 10,976.75/x
  3. Step 3: Cross multiply
    19,929.27x = 27,502.40 × 10,976.75
  4. Step 4: Simplify right side
    19,929.27x = 301,886,969.20
  5. Step 5: Solve for x
    x = 301,886,969.20/19,929.27
  6. Step 6: Final answer
    x = 15,147.92

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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.