Home / 38,661.11-53,356.09-21,668.24

Finding the Fourth Proportional to 38,661.11, 53,356.09 and 21,668.24

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Solution

The fourth proportional to 38,661.11, 53,356.09 and 21,668.24 is: 29,904.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,661.11 : 53,356.09 = 21,668.24 : x
  2. Step 2: Convert to fraction form
    38,661.11/53,356.09 = 21,668.24/x
  3. Step 3: Cross multiply
    38,661.11x = 53,356.09 × 21,668.24
  4. Step 4: Simplify right side
    38,661.11x = 1,156,132,242.63
  5. Step 5: Solve for x
    x = 1,156,132,242.63/38,661.11
  6. Step 6: Final answer
    x = 29,904.27

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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.