Home / 38,809.67-53,556.12-21,813.48

Finding the Fourth Proportional to 38,809.67, 53,556.12 and 21,813.48

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Solution

The fourth proportional to 38,809.67, 53,556.12 and 21,813.48 is: 30,101.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,809.67 : 53,556.12 = 21,813.48 : x
  2. Step 2: Convert to fraction form
    38,809.67/53,556.12 = 21,813.48/x
  3. Step 3: Cross multiply
    38,809.67x = 53,556.12 × 21,813.48
  4. Step 4: Simplify right side
    38,809.67x = 1,168,245,352.50
  5. Step 5: Solve for x
    x = 1,168,245,352.50/38,809.67
  6. Step 6: Final answer
    x = 30,101.92

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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.