Home / 38,458.36-53,072.58-21,691.36

Finding the Fourth Proportional to 38,458.36, 53,072.58 and 21,691.36

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Solution

The fourth proportional to 38,458.36, 53,072.58 and 21,691.36 is: 29,934.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,458.36 : 53,072.58 = 21,691.36 : x
  2. Step 2: Convert to fraction form
    38,458.36/53,072.58 = 21,691.36/x
  3. Step 3: Cross multiply
    38,458.36x = 53,072.58 × 21,691.36
  4. Step 4: Simplify right side
    38,458.36x = 1,151,216,438.91
  5. Step 5: Solve for x
    x = 1,151,216,438.91/38,458.36
  6. Step 6: Final answer
    x = 29,934.10

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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.