Home / 38,972.29-53,781.58-21,067.14

Finding the Fourth Proportional to 38,972.29, 53,781.58 and 21,067.14

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Solution

The fourth proportional to 38,972.29, 53,781.58 and 21,067.14 is: 29,072.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,972.29 : 53,781.58 = 21,067.14 : x
  2. Step 2: Convert to fraction form
    38,972.29/53,781.58 = 21,067.14/x
  3. Step 3: Cross multiply
    38,972.29x = 53,781.58 × 21,067.14
  4. Step 4: Simplify right side
    38,972.29x = 1,133,024,075.28
  5. Step 5: Solve for x
    x = 1,133,024,075.28/38,972.29
  6. Step 6: Final answer
    x = 29,072.56

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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.