Home / 20,239.54-27,929.25-11,286.52

Finding the Fourth Proportional to 20,239.54, 27,929.25 and 11,286.52

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Solution

The fourth proportional to 20,239.54, 27,929.25 and 11,286.52 is: 15,574.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,239.54 : 27,929.25 = 11,286.52 : x
  2. Step 2: Convert to fraction form
    20,239.54/27,929.25 = 11,286.52/x
  3. Step 3: Cross multiply
    20,239.54x = 27,929.25 × 11,286.52
  4. Step 4: Simplify right side
    20,239.54x = 315,224,038.71
  5. Step 5: Solve for x
    x = 315,224,038.71/20,239.54
  6. Step 6: Final answer
    x = 15,574.66

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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.